Merit Abrasives 08834180234 Cartridge Roll 3/8 in 120 Grit

Product Description

The MERIT ABRASIVES 08834180234 is a straight cartridge roll designed for precision deburring, blending, and surface finishing in tight or contoured areas. Built with aluminum oxide abrasive, this roll delivers consistent cutting action on ferrous and non-ferrous metals, as well as wood and composites. At 3/8 inch in diameter and rated at 120 grit, it falls in the fine grade range, making it well suited for finishing passes where surface quality matters. Machinists, fabricators, and metalworking professionals mount these rolls on mandrels and use them in die grinders or rotary tools to reach slots, holes, and recessed surfaces that flat abrasives cannot access.

This cartridge roll is used in light industrial and shop environments for applications including weld blending, edge radiusing, and bore finishing. It is particularly effective in situations requiring controlled material removal without aggressive stock loss. The fine 120-grit rating makes it appropriate as a follow-up abrasive after coarser stock-removal steps, refining the surface prior to polishing or coating. It is sold individually, making it a practical option for spot replacement in an existing abrasive inventory.

Key Features

• Aluminum oxide abrasive grain provides durable, consistent cutting across a range of materials
• 120 grit fine grade for finishing passes and surface refinement
• 3/8 inch diameter fits standard mandrel sizes used in die grinders and rotary tools
• Straight cartridge roll design allows access to slots, bores, and contoured recesses
• Sold as a single unit for flexible replacement purchasing

Compatibility

Designed as a standard straight cartridge roll for use with compatible mandrels in die grinders, pencil grinders, and rotary tools that accept 3/8 inch diameter abrasive rolls.

Installation Notes

Cartridge rolls are installed by a machinist or fabricator onto a threaded or tapered mandrel sized to match the roll diameter. Ensure the tool is powered off and disconnected from the air supply or electrical source before mounting or removing a roll. Do not exceed the maximum RPM rating of the abrasive or the tool. Inspect the roll for damage before each use and discard any roll that shows tearing, unraveling, or uneven wear.