No other drill bit provides as much versatility and production efficiency as the Irwin Unibit. The Unibit has a single-flute cutting edge for greater control through steps. The Unibit will maintain its sharp edge though thousands of cuts. The triple-flatted shank prevents slippage in the chuck. New Speed Point tip penetrates faster than previous Unibits and prevents walking. Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates.