Ensure your semi truck is Ready for the Road Ahead with updated vehicle components, with the Blitz Bits 9/32" x 4-1/4" RH High Speed Steel Drill Bit. Due to its ability to create holes in a wide variety of materials such as wood, plastic, and metal, this replacement drill bit is the ideal tool for updating a vehicle or completing other construction tasks. Fashioned with a universal shank to fit most drill chucks. FleetPride is your First Click in Heavy Duty .