1. Material: high speed steel 43412. Double relief angle3. Super smooth chip flute4. Tool handle type: straight handle5. Outer blade tip angle: 118 degrees6. Useful length: 6mm or more7. Diameter of handle: 0.5mm or more8. Chip flute length: 6mm or more9. Cutting diameter (mm): various10. Rigorous quenching process, ultra-high toughness11. Cooling type (internal cooling/external cooling): external cooling12. Can drill all kinds of steel, iron, aluminum alloy and other metals, bamboo, wood, plastics and other materials13. Model: diameter 9.0mm: groove length 81mm, total length 125mm; diameter 9.5mm: groove length 81mm, total length 125mm; diameter 10mm: groove length 87mm, total length 133mm; diameter 10.5mm: groove length 87mm, total length 133mm; diameter 11mm: groove length 94mm, total length 142mm; diameter 11.5mm: groove length 94mm, total length 142mm; diameter 12mm: groove length 101mm, total length 151mm; diameter 12.5mm: groove length 101mm, total length 151mm; diameter 13mm: groove length 101mm, total length 151mm; diameter 13.5mm ：Ditch length 108mm, total length 160mm; diameter 14mm: groove length 108mm, total length 160mm; diameter 16mm: groove length 120mm, total length 178mmSpecification: Package Weight One Package Weight 0.08kgs / 0.17lb One Package Size 6cm * 14cm * 3cm / 2.36inch * 5.51inch * 1.18inch Qty per Carton 380 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 380 pcs = 67260 pcs 40HQ: 412 cartons * 380 pcs = 156560 pcs