Merit Abrasives 66261194395 Cartridge Roll 3/8 in 80 Grit

Product Description

The MERIT ABRASIVES 66261194395 is a straight cartridge roll designed for precision deburring, blending, and surface finishing in tight or contoured areas. Built with a ceramic abrasive on a cloth backing, this roll delivers consistent stock removal at medium grade (80 grit) across a range of metals and hard materials. The 3/8-inch diameter profile fits standard mandrel-mounted die grinders and pneumatic tools commonly used by machinists, tool-and-die technicians, and metalworking professionals. Ceramic abrasive grain fractures during use to continuously expose fresh cutting edges, extending service life compared to aluminum oxide alternatives.

This cartridge roll is suited for interior bore finishing, weld blending, and deburring operations in both shop and field environments. The cloth backing provides flexibility to conform to curved or irregular surfaces without tearing under load. At a maximum operating speed of 18,000 RPM, it is compatible with the high-speed rotary tools typically used in precision metalworking, aerospace maintenance, and fabrication work. It is sold individually (package quantity of 1) with a minimum order quantity of 100 units.

Key Features

• Ceramic abrasive grain self-sharpens during use for extended cut life
• 80 grit medium grade suitable for stock removal and surface blending
• 3/8-inch diameter fits standard mandrel-mounted rotary tool setups
• Cloth backing provides flexibility for contoured and irregular surfaces
• Rated to 18,000 RPM for compatibility with high-speed die grinders

Compatibility

Designed as an OEM-style replacement cartridge roll for use with standard mandrel-mounted die grinders and rotary tools accepting 3/8-inch diameter straight cartridge rolls.

Installation Notes

Installation is performed by metalworking technicians using a compatible mandrel inserted through the cartridge roll core and tightened per the mandrel manufacturer's instructions. Always verify the tool's rated RPM meets or exceeds the roll's 18,000 RPM maximum before mounting. Disconnect and de-energize the tool before installing or removing the roll. Do not exceed the rated maximum RPM, as overspeed can cause roll failure and injury.