ZFE Reinforced Cut Off Wheel 1 1/2-Inch (38mm) With 2 Mandre 1/8" For Proxxon Dremel Rotary Tools Pack of 50Pcs Size:1-1/2"(38mm) The cut-off wheel is reinforced with fiberglass for increased durability and used for cutting metal including hardened steel. Great for contractors and the home hobbyist. Ideal for cutting, grooving and trimming all kinds of metal May also be used on other materials-including thin wood, plastics and ceramics Cut bolts or screws or make slots in rusted or stripped bolts and screws The cut-off wheel cuts only along its edge Shank:1/8"(3mm),1-1/2" (38mm) Fiberglass Reinforced Cut-off Wheel Disc with 2 Mandre 1/8"