Description
- Material:Step Cone Drill Bits is made of high speed steel,and the Titanium Nitride Coated to reduce friction heat,and run cooler.
- Packing:Includes 3 sizes,3-12mm,4-12mm and 4-20mm,and comes with a portable cloth bag for easy storage and organization without worrying about falling.
- Design:The drill tip adopts a 135°bifurcated tip design,which not only increases the cutting speed,but also prevents the step drill bit from slipping during operation.The cutting becomes faster,effectively saving your time and energy.
- Use:One step drill bit can punch holes of different sizes and the material is hard,to meet your various needs at work.
- Application:It is suitable for DIY production,woodwork,workshop processing and other purposes.Can be used for punching iron and wood within 3mm.Step drill bit can be used with electric hand drill.
