Drill America 5 Piece Tungsten Carbide 1 8 in Cutting Bit Accessory Marmara Gray For use with PRX11021 5 in Height 21 For use with PRX11021 Specification Details Brand Hillman Type Carriage Bolt Diameter 3 8 inch Length 1 inch Material Steel Finish Zinc Plated Grade 2 Thread Type Coarse Unit of Measurement SAE Head Style Domed round head with square neck Count 100 per package Packaging Type Boxed Package Dimensions (L x W x H) 4 Sub Brand Drill America CA Residents: Prop 65 Warning(s) Yes For Use on Glass No For Use on Wood Yes Warranty None For Use on Ceramic No Total Number of Pieces 5 For Use on Concrete No For Use on Grout No Material Tungsten carbide Set Individual Individual Diameter Measurement 1 8 in For Use on Metal Yes For Use on Drywall No Type Bur For Use on Plastic Yes Application Cutting stainless steel and metals Double cut style for rapid material removal in tough applications Solid carbide tooling provide long life and faster cutting speeds Round 1 4 in