Accupro ACC-G039-20 Retaining Ring Grooving Tool

Product Description

The ACCUPRO ACC-G039-20 is a solid carbide retaining ring grooving tool designed for internal groove cutting in precision machining applications. Built from submicron-grade solid carbide, it delivers the hardness and edge retention needed for consistent groove geometry in tight-tolerance bores. The tool features a 3/8 inch shank diameter and a 0.0400 inch groove width, making it suited for cutting narrow retaining ring seats in small-diameter bores. With an overall length of 2.5 inches and a projection of 0.110 inches, it provides controlled reach without sacrificing rigidity. Machinists and toolroom technicians working on lathes or boring operations will find this tool appropriate for high-precision internal grooving work.

This grooving tool is intended for internal retaining ring groove applications in bores starting at a minimum hole diameter of 0.3750 inches. It can reach a maximum hole depth of 1.25 inches, making it capable of handling both shallow and moderately deep bore grooving operations. Typical use cases include machining retaining ring seats in hydraulic cylinders, pump housings, spindle bores, and precision mechanical assemblies. The submicron carbide grade supports use in ferrous and non-ferrous materials where edge integrity and groove width accuracy are critical to proper ring seating.

Key Features

• Solid submicron-grade carbide construction for hardness and wear resistance
• 0.0400 inch groove width optimized for narrow retaining ring seats
• Minimum hole diameter of 0.3750 inches for small-bore grooving capability
• Maximum hole depth of 1.25 inches for reach into moderately deep bores
• 3/8 inch shank diameter for standard toolholder compatibility
• Compact 2.5 inch overall length reduces overhang and vibration

Compatibility

Designed as a direct-fit replacement for retaining ring grooving applications requiring a 3/8 inch shank and 0.0400 inch groove width in bores at or above 0.3750 inches minimum diameter.

Installation Notes

Installation and use of this tool should be performed by a qualified machinist familiar with internal grooving operations on a lathe or CNC turning center. Ensure the toolholder is properly torqued and the shank is fully seated before beginning a cut. Inspect the cutting edge for chips or wear before each use, as carbide tools can fail without visible warning if mishandled. Follow all machine guarding and PPE requirements per applicable shop safety standards.