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The MICRO 100 RAD-1 is a concave radius-cutting tool bit designed for precision lathe and turning operations where a consistent radius profile is required. With a 1/32 inch radius and a 3/8 inch square shank, this bit seats securely in standard tool holders and delivers repeatable concave contours in workpiece materials. It is a single-point cutting tool suited for machinists and tool-and-die professionals working on manual or CNC lathes where close-tolerance radius forms are specified. The compact shank size makes it a practical choice for light-duty profiling and finishing passes.
This tool bit is used in machine shop environments for generating concave radii on turned parts, including shafts, bushings, and custom components. It is appropriate for both production and maintenance machining contexts where a formed radius must be cut into metal or similar machinable stock. The 3/8 inch shank fits widely available square-bore tool holders used on bench lathes and engine lathes in job shop and industrial settings.
Designed as a direct-fit replacement or standard addition for 3/8 inch square-bore lathe tool holders used in manual and CNC turning applications.
Installation is performed by a machinist or toolmaker. Power down and lock out the lathe before seating or adjusting the tool bit in the tool post or holder. Ensure the shank is fully supported and the cutting edge is set to the correct center height before engaging the workpiece. Follow shop safety procedures and applicable OSHA machining guidelines when operating cutting tools.
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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