Specifications: Using high quality alloy, hardness and durable enough. Universal chuck is precise and non-slip. Great for hand-made, model text to play holes. With mini size and lightweight, it is portable to carry. Item Name: Hand Twist Drill Material: Alloy Features: Durable, Precise, Non-slip, Lightweight Clamping Range: 0.5mm-6.5mm/0.02"-0.26", Link Aperture: 3/8-24UNF (Approx.) Clamping Range: 1.5mm-10mm/0.06"-0.39", Link Aperture: 3/8-24UNF (Approx.) Product Size: 108mm x 40mm x 40mm/4.25" x 1.57" x 1.57" (Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Hand Twist Drill (Not Included Drill) 1 x Drill Clip Key