HSS Step Drill Bit - - Our step drill bit is mainly designed for drilling in wood and steel, including metals, aluminum, wood, plastic, etc. Superior Material - - Titanium coated 4241 (HSS) high speed steel reduces friction. They are more durable than uncoated drill bits and HSS (high speed steel) has a long service life. Multifunctional - - According to the need to process holes of different diameters, no need to change drill bits and hole positioning, double cutting blade design for faster cutting, automatic deburring of the hole when drilling. Usage - - 4mm precision holes can be drilled to 32mm holes of different sizes. Suitable For - - Drilling tools, bench drills. Working in water cooling can effectively extend the life of the drill bit. Feature - This drill bit is made of high quality HSS steel and with titanium coating to reduce friction and heat. - Suitable for drilling holes in a variety of materials, including steel, brass, wood, plastic, etc. - No pilot holes or pre-drilling required, and automatically deburrs holes when drilling. 2 fluted edges for faster, smoother cutting. - According to the need to process holes of different diameters, you can achieve spot processing of large holes, no need to change drills and hole positioning. - Tool use: drilling, bench drill. Working in water cooling can effectively extend the life of the drill. Specification - Material: Made of 4241 high-speed steel - Handle: 10mm triangular round handle - Surface treatment: nitrogen treatment - Spiral groove drill scale 4-32mm - Scale: 4,6,8,10,12,14,16,18,20,22,24,26,28,30,32mm
