Radius Marker, Small, 20 in Radius ORS NASCO and most other surfaces Intensely brilliant and most other surfaces Intensely brilliant colors create eye popping [Nom] 4 1 2 in Grit 36 Hazmat NO Jan San Catalog NO Mounting Back Up Pad Prop 65 YES Quantity 25 per carton Quarterly Flier NO Roughness Grade Coarse Special Order NO Speed [Max] 15300 RPM Stock Status In Stock Type Resin Fiber Disc UNSPSC 31191506 Used With Right Angle Grinder Sander Welding Catalog NO Wt Precision tools made of rust proof aluminum and anodized for lasting protection The arms are precisely aligned with spring tension joints to guarantee accuracy and rigidity The holder accommodates flat or round soapstone and pencils All are a folding type design the three smaller models will fit conveniently into a shirt pocket All have sturdy friction joints to maintain rigidity and accuracy