Step Drill Bit Metal Drill 4-12/20/32mm 6-30mm HSS Cobalt Step Cone Drill Bit

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XCAN 4-12/20/32mm 6-30mm HSS Cobalt Step Cone Drill Bit Nitride Coated Wood/Metal Hole Cutter Drill Spiral Groove Step Drill Bit 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 ina 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 thickne 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 6-30mm: 4-6-8-10-12-14-16-18-20-22-24-26-28-30mm 14 steps Note Please allow 1-3mm error due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.

About shping
Shping and Packaging All it will be double checked and well packed before sending.It will be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for e areas,it may take a little longer). 

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