![]() ![]() One drill can be used instead of multiple drills. The harder the material, the lower the speed.Ģ) Inject cooling oil during work, it will greatly increase the drilling efficiency and extend the service life of the drill bit.ģ) Drill bits are good for drilling wood, plastic, steel and sheet metal. Step Drill Bits are mainly used for drilling of thin steel plates within 3mm. 11 step bits - 1/4 to 1-3/8 12 step bits - 3/16 to 7/8 M2 high-speed steel with titanium coating Titanium reduces heat for longer life Self-starting. Not recommended for stainless steel.ġ) Low speed star drilling. Suitable for a variety of materials, such as carbon steel, sheet metal, insulation boards, PVC boards, wood, etc. It has a sharp groove at one side which acts as the cutting edge. KnKut hole expansion step reamers enlarges and deburrs. It has multiple levels with increasing diameters from tip to end. KnKut step drill bits are conical in shape and manufactured with dual flutes for clean accurate holes. Bosch Turbo Step Drill Bits deliver extreme performance in metal in both high- and low-speed mode. Suitable for: The step drill bit set can be used for workpieces with a hardness of less than 25 and a thickness of less than 5 mm. A step drill bit is a conical shape drill bit to make different size holes with one bit. Description: Double-fluted VARI-BIT is made of high-speed steel with a steam oxide surface. Single piece eliminates clogging and creates a smooth, faster. Spiral Slot: Provides faster, smoother cutting and a tri-flat shank to ensure a firm grip Triangular round shank: can be easily inserted into a drill, a drill use and a pressing drill. High-speed steel (M2) drill bit for use with pocket-hole jigs. Een van de vele artikelen die verkrijgbaar. Ladder structure: a drill bit can drill holes of different specifications, no need to buy multiple drill bits, saving space and money. Shop 3pcs Spiral Step Drill Bit 4-12/4-20/4-32 Mm,total 32 Sizes, Hex Shank Taper High Speed Titanium Coating. : These step drill bits are made Made of heat-treated 4241 high speed steel with titanium nitride coating.Titanium coating to reduce friction and operate cooling, can effectively prolong the service life. ![]()
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