Industrial 78-1125 Carbide Head Steel Shank Keycutter

The Internal Tool 78-1125 keycutter offers extended service life via its composite construction, combining a rigid steel shank with a tungsten carbide cutting head. This material pairing enables the bit to withstand repeated cutting into brass, nickel-plated, and solid steel lock cylinders without losing tension at the working tip or chipping the edges. It features a 1/2-inch drive shaft dimension and a 0.0469-inch thick profile that slots into common key cutting machinery setups used in locksmith shops and facilities maintenance divisions. Identification code 78-1125 distinguishes this specific model among various industrial keyway replication parts where dimensional consistency prevents jamming during operation. Technicians utilize this instrument to duplicate key blanks accurately, ensuring the mechanical cuts align with the intended lock pinning configuration for reliable entry access.