1. Material: metal2. Weight: about 438 grams3. Size: about 25x4.65 cm4. Application: most cylindrical electric drills can be used5. Accessories: converter, chain with nails (50 nails), automatic nail feeder, cross bit6. Features: no need for support, convenient and fast to use, accurate and continuous nail feeding, high efficiency and fast, adjustable screw length and depthInstallation steps1. Put the bit into the electric drill and tighten it2. Put the converter into the electric drill and tighten it3. Adjust the screw depth to the right4. Just install the chain nailsSpecification: Package Weight One Package Weight 0.50kgs / 1.11lb One Package Size 25cm * 17cm * 6.5cm / 9.84inch * 6.69inch * 2.56inch Qty per Carton 60 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 60 pcs = 10620 pcs40HQ: 412 cartons * 60 pcs = 24720 pcs