Making a dovetail oring groove is an annoying task on a good day at normal size scales. thermal expansion of the groove and the O-ring. S. O-Ring Groove design plays an important part in how an o-ring seals. The male flange has a dovetail O-ring groove so that it actively retains the o-ring (it is actually pressed into the groove). After selecting a material that fits your sealing application, you can continue by having the Size Selector calculate the O-ring dimensions and tolerances, considering even thermal expansion and volume swelling of the sealing element. 888-THINBIT (888-844-6248) E-mail: Questions relating to Orders Questions relating to Quotes Questions relating to a General Inquiry. I have two circles representing my oring. GROOVE 'N TURN® dovetail grooving inserts are used to machine O-ring dovetail grooves with 66° undercut angles. Make the groove compress . Dovetail grooves are used to hold the O-ring in place during installation or maintenance. 1. I would rough the groove width to the right size with an endmill and leave . It is often necessary to provide some mechanical means for holding an O-ring in a face seal groove during assembly and maintenance of equipment. Volume fill is the O-ring volume divided by the gland volume. e Minimum full thread depth. Joined Aug 3, 2006 Location Cape Cod, Ma. 86 - Dovetail Cutters W/ Steel Shank 60° Incl. Harvey Tool's fully stocked selection of O-Ring Slotting End Mills are optimized for machining O-Ring grooves, and feature a stub flute length for improved strength. DOVETAIL O-RING FACE GROOVING INSERTS " " " Style 6 Shown FRONT RAKE: Primary 10° honed, Secondary 15° BACK CLEARANCE: 24° one side SIDE CLEARANCE: Depends on major diameter RADIUS: On 24° side only TOP RAKE: 0° LEAD ANGLE: 0° Notes: • For best performance, form undercut by profiling. 002 The compressed O-ring must have extra space within the groove without overfilling the groove. b Groove outside diameter. Features: O-Ring Dovetail Groovers Solid micrograin carbide ; For turning 24° o-ring dovetails; All shanks have two lockdown flats so you can flip the tool and cut both sides. For a face seal: a compression ratio of 20-30%. Each user should conduct evaluations to determine the suitability for his particular application. Their extreme hardness means they are brittle, so a highly rigid setup, such as a CNC machine, is necessary to prevent. For O-Ring Grooves - Cutting Tools a variety of drilling and cutting tools available 24 hrs. Gap (mm) Sealing Gap (mm) info Results at Installation min. , the THINBIT GROOVE ‘N TURN line includes Dovetail grooving inserts and Static O-Ring Grooves. a lid which opens regularly. 004" - . Products that are often purchased together. 005. Solid Carbide Dovetail Cutters for Half Dovetail O-Ring Grooves. O-ring Groove O-ring 을 설치하기 위해서, Groove 가공을 해야한다. Our rubber O-Rings are made of EPDM, FKM, NBR,. This can make them challenging. com• Upgraded o-ring groove design – half dove tail o-ring groove design protects the o-ring from being separated from the housing during filter changeout. For technical assistance with any of these alternate arrangements, please contact Dichtomatik North America. and O. Metric Features: O-Ring Dovetail Cutters Solid micrograin carbide; For milling 24°o-ring dovetails; They cut with both top. Abstract. Worldwide unique online calculation tool taking into consideration of the thermal expansion of the construction parts and the O-Ring. The wall inclination creates a groove with a trapezium cross-section, whose main purpose is to hold the O-ring in during installation and maintenance. 125” and . 070 0. 003 0. I would probably dimension the outer radius of each corner (or 4X R. , at the hard-ware and O-ring tolerance stack-up) and the smallest possible O-ring in the largest possible groove. This is an expensive grooveThe O-ring calculator tool is intended to form the basis of an o-ring installation, and assist with selection of o-ring and hardware dimensions. 002: Milimeters +. Dovetail grooving inserts are used to machine O-ring dovetail grooves with 66-degree undercut angles. Doing one in a groove that is less than 1/32" wide is extremely challenging. Bochnia. The necessary radii that should be called out inside the groove on a larger part could be missed in CAD/drafting if it was not created or added when the 3D groove feature was created. Very shiny, easily a 32 and good luck measuring the surface finish. Custom O-Ring Gaskets; Surface Mounted. Feedthrough Collars (304SS) - Dovetail O-Ring Grooved Flange. Retaining Ring Groove. C. 002 on the floor for the dovetail tool to finish the bottom and have no mismatch. O-ring calculator with complete design analysis. Tool Number. EZ-Lok Seals. A sharp inside corner in an o-ring groove geometry is typically just an omission/mistake by the design engineer and should be double-checked. Part. Clamp the box together. This design is beneficial when the seal is opened and closed during use. This dovetail o-ring groove design guide will help you find the right dovetail o-ring. Bottom Radius. But you have to careful as they do have a. Solid Carbide Dovetail for O-Ring Grooves (Metric) PAGE 14. For reciprocating O-rings: a compression ratio of 10-20%. An undercut or dovetail groove has proven beneficial in many applications to keep the o-ring in place. O-Ring can extrude into clearance gap or get squeezed in two directions. EIKOSHA×Dedicated Cutters; EIKOSHA×Machining tools; Simultaneous O-Ring Groove Compliant Dovetail Grooving and R Chamfering, Powdered High-Speed Steel, TIALN Coating. Adheres to standards specified by the O-ring division of Parker Hannifin CorporationApplicationsUsed for milling half or full O-ring dovetail grooves WITHOUT a drop hole allowance. 2360 Palumbo Drive. O-rings used as Boss Seals can withstand much higher application pressures because the threaded hardware mates to eliminate a clearance gap. Dovetail Gland DimensionsTHE DICHTOMATIK O-RING HANDBOOK Dichtomatik North America 47690 East Anchor Court, Plymouth, MI 48170 TEL (734) 354-5555 FAX (734) 254-0934. 70 - Double End Split Blanks. 070 . The O-ring sits in the groove additionally is compressed during assembly, creating ampere plug between two surfaces. , Japanese JIS, British BS, or Common Metric sizing for o-rings, these o-ring size charts will help you locate the right o-ring size. The dovetail creates a strong and secure area for clamping, while. 005 0. Also known as shell cutters, these high-speed steel cutters are good for face and side milling. The groove must be designed to accommodate not just the o’ring size, but also its intended usage; be it dynamic or static operation, radial or axial loading, vacuum or high pressure. Parker's H-seals are designed for as cast or machined grooves and can be retrofitted for standard O-ring groove sizes. Dovetail O-ring design. Lexington, KY 40509. AS568 -004 through -475 Dovetail Seal Design Guidelines: AS-568 DASH # W O-RING CROSS SECTION: G GROOZE WIDTH: H GROOVE DEPTH: R1 RADIUS: R RADIUS: SHARPEDGE: ROUNDEDEDGE: Inch +. TABLE 1 TABLE 2 Max Radial DOC ≤ 28 Rc 29 - 37 Rc 38 - 45 Rc 23807 0. An O-ring is a circular cross-section ring molded from rubber (Figure 1-1). 002-006 0. D. In milling the groove, a regular o-ring groove using the dimensions of “W” and “L” must be made first, then finished up with a dovetail cutter. Dovetail o-ring groove design is used to prevent o-rings from falling out of the gland. 86 - Dovetail Cutters 20° Included. * Please note that some AS568-0XX O-rings have atypical cross. Choose between more than 30 groove materials and 11 O-ring compounds! Benefit from a modern user friendly design and be guided from design rec-ommendations from info boxes. Worked just great and that's the shape I need for the "O" ring. Installation stepsParker O-Ring Vacuum Sealing Guide is a comprehensive pdf document that provides technical information and best practices for designing and selecting o-ring seals for vacuum applications. Displays the diameter of the selected cylindrical face, or No selected diameter. . Gland Design for Static Application for O-rings with Axial Squeeze. Special orders in 4-6 working days. 56 € Min. They are custom molded to fit both round and complex groove paths with the potential to seal multiple ports with just one seal. 139 inch (3,53 mm) and bigger. com Radial Grooving. Cutters for machining grooves by side running have a dovetail groove shape. AdvantagesBut I need to retain the o-ring in the flat groove, and they seem to recommend you don't do this and that the width of the groove is bigger than the o-ring so it can squeeze under compression. Designed for milling dovetail grooves for sight attachments, this fully stocked Harvey Tool product offering of Sight Groove . , we not only stand by our product 100%, but we use them in our day to day operations. Dovetail O-ring Groove in Mounting Flange; Downloads & Ordering. The soft-seated, dovetail, o-ring groove ensures a bubble tight seal in the closed position. Made of solid carbide, they are harder, stronger, and more wear resistant than high-speed steel and cobalt steel for the longest life and best finish on hard material. This feature article analyses an O-ring in a dovetail groove by using the finite element method. g. Browse design considerations and recommendations for static face seals, metric o-rings, static dovetail. 52:. 005 0. Two finite element models were developed with Ansys software to study the behaviour of the assemblies in both cases when the clamping load is applied and when the. 057". (the grooves (2 per part) went around a large part and if you laid the path flat it was something like 150" long. O-Ring & Engineered Seals. To facilitate assembly, the diameter of the O-ring groove is usually selected somewhat larger than the diameter of the O-ring. 1 at $250 and 2 at $180 each. This is beneficial for special applications where the O-ring has to be fixed by the groove e. Lexington, KY 40509. Calculate the O-Ring groove dimensions. Thermal swell of the rubber material. 66° Dovetail Cutters For O-Ring Grooves. 73 - Face Grooving Tools. • Easy to use • PDF output • Saving of your designs Dovetail Cutters-O-Ring Slotting End Mills Harvey Tool's fully stocked selection of O-Ring Slotting End Mills are optimized for machining O-Ring grooves, and feature a . As well as the chemical volume swell or shrinkage of the O. These stock cutters conform to the standards suggested by the Seal Division of Parker Hannifin Corp. This can make them challenging. nom. The results of this analysis show that compared with rectangular grooves, dovetail grooves contribute to the enhancement of seal performance. 015: 0. For reciprocating O-rings: a compression ratio of 10-20%. Very shiny, easily a 32 and good luck measuring the surface finish. d Optional construction for shapes and long straights. Find your exact metric o-rings and easily order online from the world’s largest metric o-ring inventory. Unfortunately, they are very fragile dueto their trapezoidal profile of a large Cutter Diameter with a smaller Neck Diameter. MAJOR Ø PRICE AlTiN. Surface Finish X groove top and bottom : for liquids X = 32 micro inches (0. of Flutes Price AlTiN; HDG1/16. Bore. Designed to the standards suggested by the O-Ring division of Parker Hannifin Corporations (tools meet both specs: ORD 5700/USA, ORD 5700) Designed for milling half dovetails or full dovetails with no drop hole allowance. Dimensional only, surface finish is already taken care of. 2 straight flutes. Surface finishes up to 64 to 125 RMS with no burrs, nicks, or scratches are recommended. For rotary O-rings: a compression ratio of 0-10%. 2014. Some find success using a thick lubricant, such as O-Lube, to act as a temporary glue. Choose from more than 500. Tech Support. com. O-Ring Selection; Bitte definieren Sie die Anwendungsparameter und wählen Sie ein Dichtungsmaterial aus. Utilizing left/OD and right/ID insert pair to generate groove form, inserts are. O-ring Size Charts Note: The AS O-ring Size Chart has a column that shows the Nominal Size along-side the Actual Size. This can be done by using a dovetail groove. 002 on the floor for the dovetail tool to finish the bottom and have no mismatch. The retention feature makes having an upside-down or vertical face seal groove much easier. (fig. Made of solid carbide, they are harder, stronger, and more wear resistant than high-speed steel and cobalt steel for the longest life and best finish on hard material. For reciprocating O-rings: a compression ratio of 10-20%. For a rod (shaft) seal:O-Ring Max Groove Diameter = Min Shaft Diameter + (2 x Recommended Gland Depth) b. The variable names PISTON-TYPE SEAL FACE-TYPE. The O-ring must have room to expand laterally in the groove due to axial compression. They have a large mill diameter for removing a large amount of material per pass. 99USD. Dovetail grooves are a great mechanism for holding O-rings in place. Made of solid carbide, they are harder, stronger, and more wear resistant than high-speed steel and cobalt steel for the longest life and best finish on hard material. 051". 500 Major Diameter. 001" increments. • Easy to use • PDF output • Saving of your designs 4-18 Parker Hannifi n Corporation • O-Ring Division 2360 Palumbo Drive, Lexington, KY 40509 Phone: (859) 269-2351 † Fax: (859) 335-5128 Static O-Ring Sealing Parker O-Ring Handbook For Internal Pressure (outward pressure direction) dimension the groove by its outside diameter (H ) and width: O (H ) = Mean O. Our O-Ring Dovetail. Choosing the Geometry You Need. 1-23). Female or Tube - the O-ring groove is located in the housing or cylinder and a tube is installed through the O-ring l. Of Flutes. Superglue works to hold o-rings in place also. Specialty Profiles. O-ring groove design is critical to the benefit of the O-ring seal. Adding to the challenges is the common use of difficult-to-machine materials solid Inconel 718 and cladded Inconel 625. Dovetails cutters can come in seventeen included angles to make sure. Dovetailed O-Ring Groove. With the O-ring calculator, engineers can specify the groove dimensions for a specific O-ring or a specific groove. Round Internal Toolholder Selection Expands Thinbit, manufactured by Kaiser Tool Company, has expanded its selection of internal Groove ‘N Turn toolholders. Groove or slot milling. It's a far more complicated process, but produces a far superior finish, which is often critical with dovetail o-ring seal grooves. The insert design is optimized for strength by utilizing an insert pair to generate the groove form. Male or Plug - the O-ring groove is located on a plug which is inserted into the housing or cylinder (fig. Trapped volumes caused by unvented single or double dovetail o-ring groove designs. 125" and . The dovetail groove has inclined sidewalls, making it look like a dovetail, hence the name. Proudly made in the USA by AB Tools, Inc. The result will be that the ring will extrude itself under that temperature cycle. O-Ring Seal Design Guide How to design a proper groove to accommodate O-Ring Seal is essential for engineers who are new to metal seals. Before choosing a profile, you have to consider the O-ring application. 46 - Thread Relief Tools. 99 Coupon Available 5 models BKL Technologies 1in Long Double Strap Dovetail Rings , 200 Series, BKL-263 (6) As Low As (Save Up to. . All shanks have lockdown flat for faster setups. Groove Bore Piston Rod Figure 1-2: Basic GlandMany milling machines are o-ring slotting, which means they require that a tool drop into the spindle and lock in before you can begin cutting. Also known as shell cutters, these high-speed steel cutters are good for face and side milling. Designed to the Standards Suggested by the O-Ring Division of Parker Hannifin Corporation (ORD 5700/USA, ORD 5700) Designed for Milling Full Dovetail Grooves with Drop Hole Allowance; Undersized Cutter Design Allows Climb Milling Both Faces of Groove for Improved Finish; Mills Both Top and Bottom Radii; 24° Per Side, 48° Included; 2. Degradation of O-ring by system fluid . O-ring Size Charts Note: The AS O-ring Size Chart has a column that shows the Nominal Size along-side the Actual Size. Male or Plug Seal design is based on the following factors (refer to fig. Double sided dove tail vs one sided dove tail groove for o-ring Double sided dove tail vs one sided dove tail groove for o-ring elinah34 (Mechanical) (OP). Insertable Dovetail Face Grooving Tools; GROOVE 'N TURN. e. 4. Parker Hannifin2360 Palumbo DriveLexington, KY 40509Ph: 859-269-2351Fax: 859-335-5128 oesmailbox@parker. 53 - O-Ring Dovetail Groovers. For a bore (piston) seal:O-Ring Min Groove Diameter. The seal assembly consists of an elastomer O-ring and a gland. O-ring Groove Design in 3 easy steps: Step 1. Dovetail glands are used in static or slow moving dynamic applications, and require strict tolerances that are difficult to control. However, installing an O-ring into. Dovetail O-Ring Grooves Inspection I am new here so, hello all. 070 0. Over time, this mechanical wearing coupled with chemical attack of the abraded seal aggressively degrades the O-ring, producing an increase inThis offering of Parker Hannifin O-Ring Dovetail Cutters WITH Drop Hole Allowance is designed for milling a full dovetail gro. O-Ring Compatibility O-ring compatibility information for. The most important variable for installing an O-ring into a dovetail gland is making sure the seal is sized properly. Gland Size Calculator. Unless you are thinking of some special application. Included Angle 7°, . This metric o-ring groove design reference guide will help you find the right radius, back-up, pressure and other o-ring dimensions for basic applications. Create dovetail grooves that allow O-rings to flex without falling out of place. General purpose dovetails are used to undercut or deburr features in a workpiece. I would rough the groove width to the right size with an endmill and leave . In the Expressions, you can make a list of which standard grooves you want to use, and list those in the UDF wizard. a lid which opens regularly. 003 0. According to the company, the insert design is optimized for strength by using a left/OD and right/ID insert pair to generate the groove. The dovetail groove construction is only recommended for O-rings with bigger cross sections, . The dovetail groove construction is only recommended for O-rings with bigger cross sections, . The Linear Feed must be reduced to account for angular velocity (see example). $120. 1. Once you find the exact metric o-ring you need, you can easily order online from the world's largest o-ring inventory network. D3 Neck Diameter. The following information is a guide for o’ring. Select a standard, groove type, and available groove size from the lists on the top left of the tab. 000-. Proudly made in the USA by AB Tools, Inc. Furthermore, the O-ring groove has triangular, rectangular, or dovetail shapes. For bolted flanges or open & close lids . 070. For axial, radial and flange applications. An undercut or dovetail groove has proven beneficial in many applications to keep the o-ring in place. com. Design Chart 4-2 and its accompanying Design Table 4-2 (available by clicking on the chart image at the bottom of the page) give one set of dimensions for static O-ring seals when the configuration is similar to a piston or rod application with no motion involved. The I. DOVETAIL O-RING GROOVE DESIGN. Surface Finish X groove top and bottom : for liquids X = 32 micro inches (0. Manufactured by Kaiser Tool Co. Bore. A hard thing to fix with dovetail grooves is the expansion issue. 750", 1. Dovetail grooves are used to hold the O-ring in place during installation or maintenance. The calculator takes all relevant parameters into account like: O-Ring squeeze. When installed, the O-ring should be - stretched by max. 8 µm Ra) for vacuum and gases X = 16 micro inches (0. This groove design is relatively uncommon as it is expensive to machine and should not be used unless absolutely required. 1350", (Pack of 2) (23814-C8): Dovetail Milling Cutters - Amazon. Investigating the stress relaxation of photopolymer O-ring seal models. Gap (mm) Sealing Gap (mm) info Results at Installation min. My guess on the reason you are having problems finding specs for orings smaller than -004 is that the o-ring cross section starts dropping below 1/16" for the smaller sizes. The groove design allows the O-ring to be retained in the axial/face seal during assembly and maintenance. The O-ring must have room to expand laterally in the groove due to axial compression. A. 8M high quality products and 80 sextillion configurable parts available with fast shipping and low pricing. The modified dove tail groove geometry, using the Parker O-Ring Handbook as a guide, is provided in the attached sketch. S. However, this is an expensive groove to machine, and thus should be used only when absolutely necessary. 70 - Single End Split Blanks. 53 - O-Ring Dovetail Groovers. Create dovetail grooves that allow O-rings to flex without falling out of place. Square groves are a necessity. Special orders in 4-6 working days. Our standard range of Bell Jars is available in dovetail O-ring grooved and standard ISO flange mounting configurations. Box 80430 Fort Wayne, IN 46898-0430. O-ring standards are specified. For rotary O-rings: a compression ratio of 0-10%. For Depths of Cut 2-1/2 to 3 times groove width. Another common included angle for general purpose dovetails is 90°. Our standard range of Feedthrough Collars is available in both dovetail o-ring grooved and standard ISO flange mounting configurations. (fig. DOVETAIL O-RING GROOVE DESIGN. After further inspection, we now see 3 out of 6 holes have some pitting. Engineering, Materials Science. If an O-ring is not present, you will need to properly install one before moving to the next step. Abstract. This groove design is relatively uncommon as it is expensive to machine and should not be used unless absolutely required. 4개의 둥근 돌출부가 있는 쿼드링 (QUAD RING) 혹은 X-RING은. This groove can either be extruded, or machined using a special dovetail cutter which is available from Spira. Dovetail grooves and Crush grooves are non-rectangular and are designed intentionally to 95% maximum gland fill. . Tools have flats on the shank for quick alignment. This recommended practice provides the design criteria for static elastomeric O-ring seals used specifically in engine and engine control systems. Proudly made in the USA by AB Tools, Inc. The O-ring is also axially squeezed in a dovetail groove. O-ring material too soft . Dovetail scope rings for 3/8" or 11 mm,the ring is for most scopes which are in 30mm scope tube ; 11mm Dovetail scope ring Base Designed with Locking Hex Screws to Tightly Fit on Mounts with 11mm Dovetail Dimension ; High profile scope rings (item height:2"),the height from the center of the scope tube to the picatinny base is 1. DOVETAIL O-RING FACE GROOVING INSERTS " " " Style 6 Shown FRONT RAKE: Primary 10° honed, Secondary 15° BACK CLEARANCE: 24° one side SIDE CLEARANCE: Depends on major diameter RADIUS: On 24° side only. O-rings are measured in a variety of sizes. How to install and remove a spiral gasket from its recommended dovetail groove. 5. O-Ring Compression (%) Groove Depth incl. 010" and . 33. 6. O-Ring Size Charts O-ring, x-ring and square ring size charts. 쿼드링은 사각에서 씰링 역할을 하므로 압력의 부하분포가 고르게. 3. Manufactured by Kaiser Tool Company, the Groove ‘N Turn line includes dovetail grooving inserts that machine O-ring dovetail grooves with 66-degree undercut angles. Since this operation (the closing of the door) must happen rapidly I cannot afford to have the o-ring come out of its groove, hence the need for a dovetail groove. 2 or 3. Dovetail grooves and Crush grooves are non-rectangular and are designed intentionally to 95% maximum gland fill. Details. The result will be that the ring will extrude itself under that temperature cycle. SPECIALS IN 4-6 WORKING DAYS. 1-24). Made of solid carbide, they are harder, stronger, and more. In stock and ready to ship. There is a large variation in the tools’ neck diameters. 103″. An undercut or dovetail groove has proven benefi cial in many applications to keep the O-ring in place. , Japanese JIS, British BS and Common Metric o-ring size charts. You may have to work on the placement in 3D space of the UDF upon creation. No. For a rod (shaft) seal:O-Ring Max Groove Diameter = Min Shaft Diameter + (2 x Recommended Gland Depth) b. In this application, O-ring squeeze is primarily axial in direction (valve operation exerts force on top and bottom seal surfaces). Groove Depth Top Radius Bottom Radius O-Ring Size Shank Dia Shank Length 1 PC 2-10 11-25 26-100; 51-8000: 1291: 51-8000 : 0. Jan 20, 2016 #3 Harvey tools makes dovetail cutters for o-ring grooves that don't have a drop hole. Days: 6 Days. 73 - Face Grooving Tools - Full Radius. This feature article analyses an O-ring in a dovetail groove by using the finite element method. I also included shots of a few liners. We use Coordinate systems for referencing. 1 at $250 and 2 at $180 each. No. 0510: 0. For applications requiring more than two or. For a bore (piston) seal:O-Ring Min. such as o-ring grooves, slots and snap-fit designs. e. In radial grooving, the groove is cut perpendicular to the axis of the workpiece, effectively radiating out from the center of a cylindrical part. Design/methodology/approach – The O-rings were made by the PolyJet-Matrix. For a static male to female mating interface: a compression ratio of 18-25%. Available Cross Sections for Encapsulated O-Rings & Groove Design Data. check out this article to learn about our best tips for the successful design. 250" and 3". Whether you need bolted flanges or removable lids, this o-ring face seal groove design guide will help you choose the right o-ring for your application. You can add industry standard O-ring and retaining-ring grooves to your cylindrical model. Neck diameter is measured to the theoretical sharp corner. To create a retaining-ring groove, click the Retaining Ring Grooves tab. . Dove Tail Cutter 2-Flute for O-Ring. 070”, . Engineering support services are available for a fee for expert help optimizing critical applications. However, this is an expensive groove to machine, and thus should be used only when. 형성된다. Slot Depth. Therefore, the body is one of the most important considerations when designing an O-ring groove. They are used to cut the male and female parts of dovetail joints for industrial slides, as well as for cutting bevels and undercuts, and for deburring parts. 1-24). . c Sharp edge or burr not allowed; break corner 0,15 max. If excessive clearance is created, extrusion will result. Then use the o-ring size chart to easily order online from one of the world’s largest o-ring inventory networks. Ozone attack is a form of chemical incompatibility, however its high frequency occurrence has elevated this unique form of degradation to its own category. Dovetail grooves are used to hold the O-ring in place on a face seal groove during assembly and maintenance of equipment. Create dovetail grooves that allow O-rings to flex without falling out of place. 1. Tool Number. ), the outer virtual corner to corner. Of Flutes. Thinbit, manufactured by Kaiser Tool Company, has expanded its Groove ‘N Turn line to include dovetail grooving inserts. 6 µm Ra) Table 3. 250" and larger.