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The ACCUPRO 75215970 is a GD-style grooving insert engineered for precision external and internal grooving operations on CNC lathes and turning centers. This insert carries a cutting width of 0.1575 inches (4.000 mm) and a corner radius of 0.0157 inches (0.40 mm), making it suitable for tight-tolerance grooving and parting applications. The insert is manufactured in the ACP30M grade with a PVD coating, which provides wear resistance and edge stability across a range of workpiece materials. A positive rake geometry reduces cutting forces and minimizes heat buildup at the cutting edge. Licensed machinists and CNC operators install this insert as a direct toolholder replacement in production and job-shop turning environments.
The 75215970 is used in turning center and lathe applications where consistent groove width and wall straightness are required. The GD insert style fits CI-series toolholders and is appropriate for grooving operations on steel, stainless, cast iron, and non-ferrous alloys depending on cutting parameters. The positive rake and GMP chip breaker geometry help manage chip flow in both continuous and interrupted grooving cuts. This insert is sold individually per package, with a minimum order quantity of 10 units, and is suitable for both production runs and prototype work where repeatable groove geometry is critical.
Designed for use with CI-series grooving toolholders that accept GD-style inserts with a size code 24 designation. Compatible holding methods include clamp, screw, and self-grip configurations.
Installation should be performed by a qualified machinist or CNC operator with the machine in a fully stopped and locked-out state before changing inserts. Confirm the toolholder seat and clamping surfaces are clean and free of chips before seating the insert. Follow the toolholder manufacturer torque guidelines for clamping screws to avoid insert movement or seat damage. Verify cutting parameters against the ACP30M grade recommendations for the specific workpiece material before resuming operation.
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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