Superior Abrasives A020336 Bore Polisher 80 Grit

Product Description

The SUPERIOR ABRASIVES A020336 is a coated aluminum oxide bore polisher designed to smooth and finish bores in a range of industrial and fabrication materials. Part of the SK-3 series, it operates at a maximum of 16,000 RPM and mounts on a 0.25 inch shank, making it compatible with flex shaft tools and straight shaft die grinders. The medium grade, 80 grit construction removes surface irregularities while leaving a consistent finish across bore walls. At 1.2 pounds, it is a compact tool suited for bench or handheld power tool use by machinists, fabricators, and maintenance technicians working with tight bore tolerances.

This bore polisher is rated for use on a broad range of materials including ferrous metals, non-ferrous metals, stainless steel, exotic alloys, composite materials, and plastics. It is sized to work in bores ranging from 2 to 2.5 inches in diameter, making it a practical choice for engine work, hydraulic cylinder finishing, valve body polishing, and similar precision bore applications. It is suited for both production shop environments and field maintenance situations where a die grinder is the primary tool.

Key Features

• 80 grit, medium grade coated aluminum oxide abrasive for controlled stock removal and surface finishing
• Rated to 16,000 RPM for use with standard die grinder speeds
• 0.25 inch shank length fits flex shaft tools and straight shaft die grinders
• Designed for bores with 2 to 2.5 inch diameter range
• Compatible with ferrous metals, non-ferrous metals, stainless steel, exotic alloys, composites, and plastics
• No interleaf construction for consistent abrasive contact throughout use

Compatibility

Designed for use with flex shaft tools and straight shaft die grinders. Suitable for bore polishing applications on ferrous metal, non-ferrous metal, stainless steel, exotic alloys, composite materials, and plastic workpieces with bore diameters of 2 to 2.5 inches.

Installation Notes

Installation is performed by machinists or maintenance technicians using a compatible flex shaft tool or straight shaft die grinder. Ensure the tool is powered off and disconnected from its power source before mounting or removing the bore polisher. Do not exceed the 16,000 RPM maximum speed rating. Wear appropriate eye protection and follow applicable shop safety procedures when operating rotary abrasive tools.