

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The MICRO 100 RR-038-12 is a solid carbide internal grooving tool designed specifically for cutting retaining ring grooves in bored holes. Built from solid carbide, it delivers the rigidity and wear resistance needed for precise groove geometry in production and toolroom environments. The tool features a 5/16-inch shank diameter, a 0.0380-inch groove width, and a minimum hole diameter of 0.3120 inches, making it suited for small-bore grooving work where dimensional accuracy is critical. Machinists and toolmakers use this tool on CNC lathes and manual turning equipment where consistent groove placement is required for retaining ring retention features.
This tool is intended for internal grooving operations in small-diameter bored holes. With a maximum hole depth of 0.7500 inches and a projection of 0.1000 inches, it is well matched to shallow-bore retaining ring groove applications in ferrous and non-ferrous workpieces. The overall length of 2.5000 inches provides clearance for standard tool holders. Machinists working on precision components such as hydraulic cylinders, pneumatic actuators, bearing housings, and small mechanical assemblies will find this tool appropriate for their grooving requirements.
Designed as an OEM-style replacement and standard tooling option for internal retaining ring grooving operations on CNC and manual lathes accepting a 5/16-inch shank diameter tool.
Installation and use of this grooving tool should be performed by a qualified machinist familiar with turning operations and tool holder setup. Ensure the machine spindle is fully stopped and the tool holder is securely clamped before indexing or replacing the tool. Verify bore diameter and depth clearances match the tool projection and maximum depth specifications before beginning a cut. Follow all shop safety protocols and machine manufacturer guidelines when setting up small-bore grooving operations.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!