Model number: 90201 Hand operated drill Drill chuck: 1/4'', 3/8'' 1. Drill chuck: 1/4'', 3/8''.2. Three Jaws Chuck make the drilling work stable.3. Weight: 1/4'': 900g. 3/8'': 1200g.4. Packing: 1/4'': 30 pcs/carton. 3/8'': 20 pcs/carton.5. Applications: Drilling on wood, metal or other material. Hand operated drill 1/4'', 3/8''