Accupro 21-MG Single Point Tool Bit Rh Ar Solid Carbide

Product Description

The ACCUPRO 21-MG is a single point tool bit designed for square shoulder turning operations in metal cutting applications. Built with a micrograin solid carbide tip brazed to a steel shank, this tool bit delivers consistent edge retention and wear resistance during boring, chamfering, and turning. The right-hand cutting direction and AR-style geometry follow the AR-8 industry standard, making it a straightforward drop-in for compatible toolholders. The shank measures 0.5 inches wide by 0.5 inches tall with an overall length of 3.5 inches. A 1/32-inch nose radius is ground into the tip, providing a controlled finish on workpiece surfaces. Machinists and tool-and-die professionals working on manual or CNC lathes are the primary installers.

This tool bit is suited for general-purpose lathe work in job shops, maintenance machining, and production turning environments. It handles boring, chamfering, and external turning on ferrous and non-ferrous materials where a square shoulder profile is required. The AR form factor is widely used in both manual engine lathes and turret lathes. The micrograin carbide tip grade is appropriate for finishing and semi-finishing cuts where edge sharpness and tip integrity matter most.

Key Features

• Micrograin solid carbide tip for improved edge retention and surface finish quality
• AR-style geometry conforming to industry standard AR-8
• Right-hand cutting direction for standard lathe orientation
• 0.5 inch by 0.5 inch shank for secure toolholder seating
• 1/32 inch nose radius for controlled workpiece finish
• Suitable for boring, chamfering, and turning operations

Compatibility

Designed as an OEM-style replacement and standard fitment for AR-8 single point toolholders accepting a 0.5 inch square shank, as specified by industry standard AR-8 geometry.

Installation Notes

Installation is performed by qualified machinists following standard lathe tooling setup procedures. Secure the tool bit firmly in the toolholder before operating the machine, and verify cutting edge height relative to the workpiece centerline before taking a cut. Power down and lock out the lathe before changing or adjusting tool bits. Inspect the carbide tip for chipping or wear before each use.