Merit Abrasives 66261194399 Cartridge Roll 120 Grit

Product Description

The MERIT ABRASIVES 66261194399 is a straight cartridge roll designed for precision deburring, blending, and surface finishing in tight bores, slots, and contoured areas. Built with a ceramic abrasive on a cloth backing, it delivers a 120 grit fine grade cut that removes material efficiently while leaving a consistent finish. Rated to 18,000 RPM, it handles high-speed rotary tools without sacrificing control. At 0.5 inches in diameter, it fits standard mandrel setups used by machinists, toolmakers, and metal fabricators working in confined geometries.

This cartridge roll is suited for ferrous and non-ferrous metalworking applications including weld blending, bore finishing, and die finishing. It performs well in aerospace, automotive, and general fabrication environments where controlled stock removal in restricted access areas is required. The ceramic abrasive is self-sharpening under load, making it a durable choice for sustained production use. This is a single-piece item sold in minimum order quantities of 100 units.

Key Features

• Ceramic abrasive construction for self-sharpening, long-lasting cut
• 120 grit fine grade for smooth finishing and light stock removal
• Cloth backing provides flexibility and durability under load
• 0.5 inch diameter fits standard mandrels for bore and slot work
• 18,000 RPM maximum speed rating for high-speed rotary tool compatibility

Compatibility

Designed as an OEM-style replacement cartridge roll for use with standard straight mandrels in pneumatic and electric die grinders and rotary tools that accept 0.5 inch diameter cartridge rolls.

Installation Notes

Installation is performed by machinists or metalworking technicians using a compatible mandrel secured in a die grinder or rotary tool. Ensure the workpiece is secured and the tool is powered off before mounting or removing the cartridge roll. Do not exceed the 18,000 RPM maximum speed rating. Inspect the roll for damage or unraveling before each use and replace immediately if wear is uneven or backing shows separation.