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The SCIENTIFIC CUTTING TOOLS GT039-8 is a solid carbide retaining ring grooving tool designed for internal groove cutting in precision machining applications. Built from submicron carbide grade material, it delivers consistent edge retention and dimensional accuracy when cutting retaining ring grooves in bored holes. The tool features a 3/8-inch shank diameter, an overall length of 2.5 inches, and a 0.0400-inch groove width. Right-hand cutting geometry makes it compatible with standard lathe and boring setups. Machinists and tool and die professionals use this tool where tight groove tolerances are required in production and repair environments.
This grooving tool is suited for internal retaining ring groove operations in holes with a minimum diameter of 0.375 inches. The 0.110-inch projection and maximum hole depth capacity of 0.5 inches make it appropriate for shallow to moderate bore depths in ferrous and non-ferrous workpieces. It fits standard 3/8-inch boring bar and collet holders, making it a straightforward drop-in for most CNC and manual turning setups that already accommodate that shank size.
Designed as a direct-fit replacement or production grooving tool for machines accepting a 3/8-inch round shank boring tool, with a minimum hole diameter of 0.375 inches and a maximum depth of 0.5 inches.
Installation is performed by qualified machinists or tooling setup technicians. Secure the 3/8-inch shank in a compatible tool holder or collet to the holding system manufacturer recommended clamping torque. Ensure the spindle is fully stopped and machine is in a locked-out state before changing or adjusting tooling. Verify groove width and projection settings against the workpiece drawing before commencing the cut.
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.
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