- TYROLITTyrolit - 4x4x3/4 S4 PREMIUM SCM DRUM A VERY FINE - 6018561X60185Call for PriceAvailability: Special OrderWALTER SURFACE TECHNOLOGIESDRUM-SANDING 4-1/4 X 4 - 5/8-11 ARB SUPERFINE BLENDEX31507-M445Call for PriceAvailability: Special Order