[Size] - 2.8-3.2mm Clamping Range. [Shank Diameter] - 4.3mm / 0.17". [Package Content] - 5 x Brass Collet Bits. [Material] - Made of brass material, Micro Twist Drill Chuck Collet. [Applications] - Suitable for combined using with hand drill or electric drill, to drill ABS, wood board, press paper, etc..
