Superior Abrasives A019872 Bore Polisher 80 Grit

Product Description

The SUPERIOR ABRASIVES A019872 is a coated aluminum oxide bore polisher designed for finishing and polishing internal bore surfaces across a range of materials. Rated to a maximum of 16,000 RPM and carrying an 80-grit medium grade abrasive, this tool fits a 1/4-inch shank and is built to work bores measuring 2-1/8 to 2-1/2 inches in diameter. The coated construction and aluminum oxide abrasive deliver consistent material removal and surface refinement, making it a practical choice for machinists, tool and die professionals, and shop technicians performing bore finishing work.

The A019872 is suited for bore polishing applications on ferrous metal, non-ferrous metal, stainless steel, composite material, exotic alloy, and plastic. It is compatible with flex shaft tools and straight shaft die grinders, making it adaptable to both benchtop and handheld finishing setups. The SK-3 series designation places it within a line of coated abrasive bore tools intended for precision interior surface work in job shop, maintenance, and production environments.

Key Features

• 80-grit medium grade aluminum oxide abrasive for consistent bore finishing
• Rated to 16,000 RPM for use with standard die grinders and flex shaft tools
• 1/4-inch shank fits common straight shaft die grinder collets
• Designed for bores ranging from 2-1/8 to 2-1/2 inches in diameter
• Compatible with ferrous, non-ferrous, stainless steel, exotic alloy, composite, and plastic materials
• Non-interleaf coated construction in the SK-3 series

Compatibility

Compatible with flex shaft tools and straight shaft die grinders. Suitable for use on ferrous metal, non-ferrous metal, stainless steel, exotic alloy, composite material, and plastic workpieces requiring bore polishing in the 2-1/8 to 2-1/2 inch diameter range.

Installation Notes

Installation is typically performed by machinists or maintenance technicians using a straight shaft die grinder or flex shaft tool. Ensure the tool is fully powered down and the collet is properly tightened to the 1/4-inch shank before operation. Do not exceed the 16,000 RPM maximum speed rating. Inspect the abrasive for wear or damage before each use and replace if the abrasive material shows uneven wear or separation from the core.