3 mm universal drill bit with hex shank by STHOR 21680.

• made of hardened steel with a hardness of 90-92 HRC
• tungsten carbide blades show higher hardness and wear resistance
• HEX 1/4 hex chuck allows attachment to cordless screwdrivers and impact wrenches.

Designed for professional use - drilling in hard and untreated materials: concrete, stainless and acid-resistant steel, aluminum, ceramics and wood.