3M 7100173921 Scotch-brite 4 Inch Non-woven Abrasive Disc

Product Description

The 3M 7100173921 is a Scotch-Brite XB-ZS Clean and Strip XT Pro Extra Cut Disc built for aggressive surface preparation work. This non-woven disc incorporates aluminum oxide abrasive mineral into an open nylon web construction rated to 12000 RPM. It removes heavy rust, thick paint, corrosion, and weld scale while cutting through to bare metal in a single pass. The high-strength, highly conformable fibers resist chunking and loading, maintaining consistent cutting action across flat surfaces and along edges. At 4 inches in diameter, it fits standard angle grinders and die grinders used in fabrication, maintenance, and industrial cleaning applications.

This disc is suited for metal surface preparation in industrial, commercial, and trade environments. Typical applications include pre-weld cleaning, post-weld cleanup, paint stripping, rust removal, and corrosion abatement on steel and similar metal substrates. The open web design resists clogging, which extends disc life during sustained use. Fabricators, maintenance technicians, and metalworkers will find it effective on both flat stock and contoured or edged workpieces where conformability matters.

Key Features

• Aluminum oxide mineral aggressively strips heavy rust, thick paint, and corrosion down to bare metal
• Open nylon web construction resists loading for consistent, sustained cutting action
• High conformability increases contact patch area for faster material removal on irregular surfaces
• High-strength fibers resist chunking and maintain performance along edges and contours
• 12000 RPM speed rating supports use on standard angle grinders and die grinders
• Low vibration profile reduces operator fatigue during extended use

Compatibility

Designed as a replacement-style non-woven abrasive disc for use on standard 4 inch angle grinders and die grinders equipped with an appropriate arbor or disc backing pad.

Installation Notes

Installation and disc changes should be performed by a qualified operator following the grinder manufacturer's instructions and applicable ANSI B11 or OSHA abrasive wheel safety standards. Always power down and disconnect the tool before mounting or removing the disc. Confirm the tool's maximum RPM rating meets or exceeds the disc's 12000 RPM rating before use. Inspect the disc for damage prior to each use and do not exceed the rated speed.