Features: _x000D_ 1. Cast by high quality metal, wear resistant and anti-impact. _x000D_ 2. Polishing surface features anti-oxidative, waterproof and anti-corrosion. _x000D_ 3. Fine workmanship ensures its stable performance and long service life. _x000D_ 4. Equipped with chuck key to adjust the chuck to proper tightness. _x000D_ 5. Easy to use, applicable for drill machine, electric drill, etc. _x000D_ _x000D_ Specification: _x000D_ Material: Iron_x000D_ Item Type: Electric drill chuck _x000D_ Clamp Range: 0.6-6.5mm _x000D_ Mount Hole: 6mm taper (B10), 3/8-24UNF thread (3/8-24UNF) (Optional) _x000D_ Drill Chuck Size: Height: 4cm/1.57in, hole diameter: 6mm/0.24in _x000D_ Chuck Key Size: 5.5 x 3.3cm / 2.16 x 1.30in _x000D_ Weight: Approx. 126-128g / 4.4-4.5oz _x000D_ _x000D_ Package list: _x000D_ 1 x Drill Chuck (Random Color)_x000D_ 1 x Chuck Key