<p>Power Saver: Split point and double flute design to prevent slippage, clears chips quickly and flushes holes</p> <p>1. High speed steel material, more durable.</p> <p>2. Nitride coated to reduce friction and run cooler</p> <p>3. No need for a pilot hole, can automatically deburr the holes you drill.</p> <p>4. Special step structure, can drill holes of different sizes,</p> <p>Product Description</p> <p>Features:</p> <p>1. High speed steel material, more durable.</p> <p>2. Nitride coated to reduce friction and run cooler</p> <p>3. No need for a pilot hole, can automatically deburr the holes you drill.</p> <p>4. Special step structure, can drill holes of different sizes,</p> <p>5. 1 step drill bit can be used as a drill bit box.</p> <p>6. Using water cooling, can effectively extend the bit life, drilling speed from 250 to -400 recommended. Widely used for cutting holes in a variety of materials like thin steel board, wood, thin iron, aluminum alloy, insulation board, PVC sheet, ect.</p> <p>Specification:</p> <p>Type: Spiral Step Drill Bit</p> <p>Material: High Speed Steel</p> <p>Coating: Nitride Coated</p> <p>Handle: Triangle</p> <p>Scop: Thin iron plate, aluminum, insulation board, PVC board thickness 0.4mm inside wood.</p> <p>4-12mm: 4-6-8-10-12mm 5 steps</p> <p>4-20mm: 4-6-8-10-12-14-16-18-20mm 9 steps</p> <p>4-32mm: 4-6-8-10-12-14-16-18-20-22-24-26-28-30-32mm 15 steps</p> <p>Note</p> <p>Please allow 1-3mm error due to manual measurement.</p> <p>Due to the difference between different monitors, the picture may not reflect the actual color of the item.</p> <p>Quantity: 3 pieces</p> <p>black</p>