Product Information
- 【Size】Diameter 1/4"-3/4" 1/8"-1/2" 3/16"-7/8" ; Total length 73mm/ 82mm/ 84mm; Working length 47mm/ 57mm/ 59mm; 9/ 13/ 12step drill bit, quick change hex shank.
- 【118° Split Point】Automatic centering, the drill accuracy is significantly improved, chip removal effect is better, and as a unique effect on stainless steel drilling, industrial aluminum titanium nitride coating with thermal, abrasion and corrosion protection.
- 【Application】Step drills include a variety of sizes suitable for use in a wide range of materials and different diameter drilling needs for aluminium, copper, wood, plastic.
- 【Little Tips】The use of cutting oil or water cooling is recommended for continuous cutting to greatly extend the service life. Don't use impact and hammering mode, you can mark the holes by wrapping the tape for controling easily.
- 【Recommended Machine】Corded drill, cordless drill, benchtop drill. General hand drill in the range of 2000-5000RPM, for soft materials, slow down the speed (1000RPM).
