STONEGO 1PC HSS M35 Cobalt Step Drill Bit - High-Speed Steel with Taper Hexagon Shank, Sizes 4-12mm, 4-20mm, 5-21mm, 5-27mm, 4-32mm for Metal and Wood Drilling

Features:<br>- HSS-CO M35 Spiral grooved Step Drill Bit Cut Tool .<br>- High heat resistance and abrasion resistance.<br>- Automatically deburr holes as you drill.<br>- Widely used to cut holes in a variety of material like stainless steel tapping steel, wood, thin iron, aluminum alloy, moisture boards, PVC sheet, ect.<br>Step Sizes:<br>4-12mm: 9 steps (4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm)<br>4-20mm: 9 steps (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm)<br>5-21mm: 9 steps (5mm,7mm, 9mm, 11mm, 13mm, 15mm, 17mm, 19mm, 21mm)<br>5-27mm: 12 steps (5mm,7mm, 9mm, 11mm, 13mm, 15mm, 17mm, 19mm, 21mm, 23mm, 25mm, 27mm)<br>4-32mm: 15 steps (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, 32mm)<br>Cutting ability: if hand drill is used, the power needs to be 550W, the thickness of the iron plate ≤ 5mm,<br>the thickness of the ordinary steel plate ≤ 3mm, the stainless steel plate ≤ 1mm,<br>For bench drills, the thickness of the iron plate is ≤5mm, the thickness of the ordinary steel plate is ≤5mm,<br>and the thickness of the stainless steel plate is ≤2mm.<br>Note: Continuous cooling is required during operation to protect the drill bit from burning due to the high temperature caused by cutting friction.<br>Package included:<br>1PC HSS-CO M35 Spiral Grooved Step Drill Bit