1. Material: aluminum alloy + metal/carbon steel2. Easy to use, features heavy-duty cast metal base with slots and mounting holes for stability3. Features easy-to-use anti-slip rubber handle4. Highly durable and sturdy iron base to keep the entire device stable5. With built-in scale, single stroke can reach 60 mm6. The spring is exquisite, strong and durable, and does not lose elasticity easily.7. Equipped with two plastic sleeves, which can be used with various types of electric drills8. High-strength chuck, stable clamping, clamping range 43mm, clamping height 21mm9. Dimensions: 1105/88647 150x225x400 mm, handle length 370 mm; 88709 150x225x515 mm10. Weight: 1105 1400g; 88647 2600g; 88709 2530gSpecification: Package Weight One Package Weight 1.50kgs / 3.32lb One Package Size 41cm * 17cm * 8cm / 16.14inch * 6.69inch * 3.15inch Qty per Carton 20 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 20 pcs = 3540 pcs40HQ: 412 cartons * 20 pcs = 8240 pcs