1. Can withstand the power of percussion drills, drill holes in 90-degree bends2. It can withstand a torque of 25N·m and a speed of 1500 rpm.3. Key chuck, fine rolling teeth, turn the drill bit chuck wrench to adjust the tightness4. Precise three jaws, firm clamping, strong stability, and the clamping range can be adjusted at will5. 3124: lengthened self-tightening chuck6. 3125: lengthened key iron chuck7. Material: aluminum alloy8. Size: 3124：15x9x3.5cm, 3125：15.5x9.7x3.4cm9. Input end size: 3124: 10mm round handle, 3125: 8mm hexagonal handle10. Clamping: 0.8-10mm11. Weight: about 485gSpecification: Package Weight One Package Weight 0.53kgs / 1.17lb One Package Size 18cm * 12cm * 4.5cm / 7.09inch * 4.72inch * 1.77inch Qty per Carton 54 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 54 pcs = 9558 pcs 40HQ: 412 cartons * 54 pcs = 22248 pcs