Scientific Cutting Tools GT045-4A Retaining Ring Grooving Tool

Product Description

The SCIENTIFIC CUTTING TOOLS GT045-4A is a solid carbide internal grooving tool designed for cutting retaining ring grooves in bored holes. Built from submicron-grade carbide, it delivers the edge retention and rigidity needed for tight-tolerance groove work in small-diameter bores. The tool cuts in the left-hand direction, with a groove width of 0.046 inches and a minimum hole diameter capacity of 0.090 inches. Overall length is 1.5 inches with a 1/8-inch shank diameter. Machinists and tool-and-die professionals use this tool on CNC lathes and boring operations where precision snap-ring or retaining-ring groove placement is required.

This grooving tool is suited for internal retaining ring groove applications in small bores, particularly where access is limited and a compact tooling profile is necessary. The 1.25-inch shank length provides secure clamping in standard collet or tool holders, while the 0.030-inch projection controls deflection at depth. Maximum hole depth reaches 0.669 inches, making it appropriate for through-bore and blind-bore groove work in small components such as valve bodies, hydraulic fittings, and precision machined housings.

Key Features

• Submicron-grade solid carbide construction for edge retention in hard and abrasive workpiece materials
• Left-hand cutting direction for specific bore orientation requirements
• 0.046-inch groove width sized for retaining ring fitment
• Minimum bore entry of 0.090 inches enables use in very small-diameter holes
• 0.030-inch projection limits tool overhang and reduces deflection risk
• 1/8-inch shank diameter fits standard small-bore collet and tool holder systems

Compatibility

Designed as an OEM-style grooving tool for use in CNC lathes, turret lathes, and boring machines equipped with tool holders accepting a 1/8-inch shank diameter.

Installation Notes

This tool is installed and serviced by machinists and tool-and-die technicians. Ensure the machine spindle is fully stopped and all motion is locked out before changing or setting tooling. Secure the 1/8-inch shank fully within the collet or tool block to the manufacturer-specified engagement depth to prevent pullout. Confirm cutting direction and tool orientation match the machine setup before engaging the workpiece.