Steel Wool, Finishing Pads and Polishing Attachments

Steel wool grades from coarse to super fine

Steel wool is graded by number. Coarse grades such as #2 strip rust, old paint and varnish; medium #0 and #1 clean and prepare surfaces; fine #000 and #0000 polish metal and rub down finishes between coats. Work with the grain, start finer than you think, and wear gloves because the fibers splinter. Never use it on automotive paint, and keep it away from water, since loose strands rust and stain.

Polishing kits, shanks and arbor threads

Power finishing attachments must fit your tool. Polishing kits for rotary tools use a 1/8 inch (3.2 mm) shank that must match the collet, while angle grinder attachments screw onto a threaded spindle, commonly 5/8-11 or M14. Check that the accessory's maximum RPM exceeds your tool's speed, wear eye protection, and keep the guard in place. Foam applicators and mini paint roller kits also appear here; choose foam or nap to suit the product being applied.

Questions about Steel Wool, Finishing Pads and Polishing Attachments

Why does steel wool leave rust spots behind?

Loose strands break off and rust when damp, and on stainless steel or aluminum they can leave embedded iron that stains the surface. Clear all debris with a vacuum or tack cloth, and choose stainless wool or non-woven pads where rust must be avoided.

Can I use steel wool on car paint?

No. Steel wool scratches clear coat and leaves fibers that rust on bare panels. For paint, use polishing compound with foam or microfiber pads; reserve steel wool for bare metal, wood and cleaning jobs away from finished paint.

What does a 1/8 inch shank mean on a polishing accessory?

It is the diameter of the mounting rod, 1/8 inch or 3.2 mm. The rod must match the collet or chuck of your rotary tool; an undersized rod slips and an oversized one will not fit. Also keep the tool within the accessory's rated RPM.