3M 05531 SC-DR Surface Conditioning Disc 3 in 25 pcs

3M SC-DR Surface Conditioning Disc Pack

The 3M 05531 SC-DR discs are non-woven abrasive accessories built for surface preparation on metal and composite materials. They suit automotive technicians, metal fabricators and maintenance crews who need consistent finishing without gouging the workpiece. Each pack contains 25 maroon discs rated for medium-grade blending and cleaning tasks. The open coating resists loading during extended use on softer alloys.

TR Quick-Change Mounting for Rapid Swaps

A TR quick-change system lets operators snap discs on and off a compatible backup pad in seconds, minimising downtime between grit changes. The 3 in diameter fits standard right-angle die grinders and rotary tools running up to 18, 000 RPM. Non-woven construction conforms to contours and edges without altering part geometry. Aluminum oxide grain delivers a uniform scratch pattern on stainless, aluminium and mild steel.

Replaces Hand Pads and Coated Abrasive Discs

These discs upgrade from hand-held scouring pads and conventional coated discs that clog quickly or cut too aggressively. The jump is worth it when blending weld discoloration, removing gasket residue or prepping surfaces for paint without creating deep scratches. They are not for heavy stock removal or dimension-critical grinding where a rigid bonded wheel is required.