Introducing the Astro Pneumatic Smart Eraser Pad, designed to quickly remove pinstripes, adhesive, and double-faced tape. Easy to use, this rubber pad features a 5/16" - 24 thread arbor for Astro models 533ET and 1208A. The 4" pad ensures professional results. Use with tools rated at max 4000RPM; not for non-geared die grinders. Weco Supply Company – your go-to for welding, industrial, and automotive paint supplies.