Step Drill Bit Aluminum Drill Bit Insulation Boards

Details: *100% brand new and high quality. *The Spiral Fluted of its unique structure, a bit can open a variety of specifications of aperture. *Do not need to use center punch, compared with the ordinary drill is not easy to be broken. *Deburring, chamfering, elliptic hole enlargement, the function of them was unable, but it is possible. *The use of tools: drill, bench drill. Work while water cooling, can effectively extend the service life of drill bit, recommend drilling rate of 250-400 RPM. *Cutting material: sheet iron plate, aluminum, wood, insulation boards, PVC plate thickness within 5mm. Use a drill to make a variety of eyelets *Color: Gold (As Pictures Show) *Material: HSS *Surface: Titanium coated *Standard: 4-22mm (4, 6, 8, 10, 12, 14, 16, 18, 20, 22mm)

Package Contents: 1*Step drill bit

Note: The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.