Straight Groove Drill Bit High-Speed Metal Steel Step Drill Bit Set Suitable for Metal Drilling Tool,4～40mm

●Product parameterProduct name: Straight groove step drill bitMaterial: High speed steel 6542 (suitable for workpieces with a hardness of generally, such as iron plates, plate thickness below 5mm)Metal drill bits for steel have 4-12mm/4-20mm/4-32mm/4-40mm/10-45mm●Package include:4～32mm: 1 x Straight groove Step drill bits4～40mm: 1 x Straight groove Step drill bits10～45mm: 1 x Straight groove Step drill bitsOne Set: 3 x Straight groove Step drill bits(4～12mm/4～20mm/4～32mm one of each)●Note:1.When HSS-M35 drills 304 stainless steel:The thickness of 1mm can be operated with a hand electric drill, and the power is above 800W.The thickness of 2-5mm is recommended to use a bench drill for operation, and the speed is below 500 rpm.2.When working with step drills, it is necessary to add water to keep the temperature down.3.The pictures may not reflect its real color due to the computer display and light, please in kind prevail. Please think over before you buy it, thank you.

• Features: High hardness, rustproof, solid and durable,self-centering point, do not need assistant center drilling or center punching.
• According to the need to process different diameter holes, you can achieve one-time processing of large holes, no need to replace the drill bit and positioning hole.
• Material: This is 6542 HSS High Speed Steel Step Drill Pagoda Drill Bit, which is made from high quality 6542 HSS steel to reduce friction and heat.
• Design: The split point tip is at 118 degrees to increase the wear resistance. The two flute design provides a smoother cutting, allows the material particles escape easily for a much more clean drilling operation.
• Meet Your Demands: Great for steel sheets/ aluminum sheets/ copper/ plastic/ wood board and many other types of sheet metal. Suitable for Home DIY, and General Building/ Engineering Use.