Metric Step Drill Set, Zhushan High-Speed Steel Shank Titanium Step Drill Bits for Sheet Metal Hole Drilling

Works great in making a smooth, clean and perfectly round hole you can drill different sizes from small holes to big holes Two-fluted design provides faster, smoother cutting;Provided with small pressure and the sets can cut through wood, sheet metal, steel and other surfaces Ideal for using to cut holes in a variety of materials including steel, brass, wood, plastic, etc HSS steel large step cone drill titanium bit set hole cutter, which is made from high quality HSS steel, and with the Titanium coated to reduce friction and heat Titanium Coating: Our high-speed steel drill bits, fortified with a titanium coating that makes the drill bit harder than a typical bit, can reduce the friction drill, and perform well in heat, corrosion, and rust resistance. Unique Design - The tip bifurcates at degrees for added wear resistance. The two-groove design provides a smoother cut, allowing material particles to escape easily for a cleaner drilling operation. Meet Your Needs - With the step drill bits we offer, you can machine holes of different diameters. Ideal for plastic/wood/board/soft rubber with low hardness countersinks. Suitable for home and general construction/engineering use. Safety and Stability - Caters to most pistols on the market to prevent slipping and falling off during rotation to increase safety in use.