1. Material: carbide2. Packing size: 80X16X16mm3. Weight: single 18g4. Used for wood perforation, spherical door tip installation, drawer tip, plastic products, wood, plywood, etc.5. Sharp cutting edge, high hardness, accurate positioning, high precision, smooth cutting, impact resistance and high toughness. Make the carpenter drill holes without threading the material when drilling holes on the clean and precise bottom.The alloy blade is used, the blade is more sharp and durable, and the head is designed with a curved curve, which is conducive to chip removal and higher perforation efficiency.6. Suitable for hand-held electric drill, vertical electric drilling machine and mobile magnetic drilling machine.7. When using, please take good protective measures to prevent the wood chips from splashing and damaging your eyes.Specification: Package Weight One Package Weight 0.02kgs / 0.05lb One Package Size 10cm * 4cm * 4cm / 3.94inch * 1.57inch * 1.57inch Qty per Carton 500 Carton Weight 12.00kgs / 26.46lb Carton Size 30cm * 50cm * 40cm / 11.81inch * 19.69inch * 15.75inch Loading Container 20GP: 444 cartons * 500 pcs = 222000 pcs40HQ: 1031 cartons * 500 pcs = 515500 pcs