1. High strength thickened ABS plastic handle, hollow with cap, easy to store micro-fine drill bits, comfortable to hold and fit your hand2. Precision three-jaw drill chuck with key, reliable and stable clamping, can clamp 0.6-6mm drill bits3. Precision drill chuck, can hold the drill bit firmly, the drill bit will not slip, will not fall off4. Drill chuck clamping specifications: 0.6-6mm5. Contained drill specifications: 1.5/2.0/3.0/4.0/5.06. Scope of application: suitable for manual drilling of wood, linden, bone horn, amber, gold steel, olive kernel, walnut, plastic and other materials7. Size: about 17.5cmSpecification: Package Weight One Package Weight 0.18kgs / 0.41lb One Package Size 20cm * 8cm * 6cm / 7.87inch * 3.15inch * 2.36inch Qty per Carton 50 Carton Weight 10.00kgs / 22.05lb Carton Size 50cm * 34cm * 34cm / 19.69inch * 13.39inch * 13.39inch Loading Container 20GP: 461 cartons * 50 pcs = 23050 pcs 40HQ: 1071 cartons * 50 pcs = 53550 pcs