Material: MetalColor: As Pictures ShowSize: 9.2cm Package included: 1 X Hand Drill 10 X Drill Bits 0.7-3mmFeaturesHand DrillFour take， both ends of the clamping head can be replaced. Suitable for clamping head，head screwdriver， drill and other small tools.The clamping diameter 0.7-3mm.The part of took four head steel is to clamp small partsSpecification: 92mm (long) 9mm (diameter)PERFECT FOR Construction drawings and renderingsSuitable: ivory horn amber olive wood walnut model plastic and other drillingTIPS: the hand twist drill is not suitable for agate metal hard material， such as punching， depth drilling，where skid would happen