 | Features: 1. High speed steel material, more durable. 2. Nitride coated to reduce friction and run cooler 3. No need for a pilot hole, can automatically deburr holes as you drill. 4. Special step stucture, can drill different size holes, 5. 1 step drill can be used as 1 box of drill bit. 6. Working with water cooling, can effectively extend the service life of bit, drilling speed 250--400 recommended.Widely used to cut holes in a variety of material like thin steel board, wood, thin iron, aluminum alloy, insulation boards, PVC sheet,ect. |
 | Specification: Type: Spiral Step Drill Bit Material: High Speed Steel Coated: Nitride Coated Handle: Triangle Scop: Thin iron plate,aluminum,insulation panels,PVC panels 0.4mm thickness within the timber. 4-12mm: 4-6-8-10-12mm 5 steps 4-20mm: 4-6-8-10-12-14-16-18-20mm 9 steps 4-32mm: 4-6-8-10-12-14-16-18-20-22-24-26-28-30-32mm 15 steps Package Included: 3Pcs Step drill bits set Note: Due to lighting reasons, the colour of the real thing may be slightly different from the picture. |
