1/4" - 1-3/8" Step Drill Bit Spiral Groove Double Fluted M2 High Speed Steel Bit

Number of Items in Set: 1Brand: Jerax ToolsType: Drill BitPackage Quantity: 1Material: MetalSuitable For: Drill Made of high grade M2 High Speed Steel and can cut holes on Stainless steel, Hardened Metal, Mild steel, Galvanized steel, Aluminum, Copper, Plastic, Wood, or anything that has similar or lower hardness as these materials. Up to 12ga /2.7mm thickness for Stainless steel. Polished Steps and Size Highlights let you able to see target hole size during drilling. No need to stop in the middle of the drilling and check. Save you time and hassle. With our high-accuracy CNC processing and optimized spiral design over the years, our spiral flutes design cuts EASY, FAST and CLEAN, outperforming the average ones on the market. Additional Vacuum heat treatment and Nitride surface hardening treatment make the performance better and long-lasting. EASY, FAST, CLEAN and cuts MORE [Tips]: Drilling at low speed (300RPM recommended) with cooling oil will help the step bits last longer. [Warning]: Always wear proper Personal Protection Equipments during the use, including eye glasses, gloves and etc.. M2 HSS 1-3/8" Step Bit Material High Grade M2 High Speed Steel Compatible materials Stainless steel, Hardened steel, Mild steel, Aluminum, Copper, Plastic, Wood, or anything that has similar hardness as these materials. Primary Sizes 1/4", 7/8", 1-1/8", 1-7/32", 1-1/4", 1-3/8" Polished steps ✓ Flutes 2 Spiral flutes Performance Easy, Fast, Clean and Heavy-duty. Shank 3/8" Tri-flat shank Advice Most cost-effective choice. Recommend for stainless steel and other harden metal.