Features:
Ø High speed steel material, more durable.
Ø Titanium coated to reduce friction and run cooler
Ø No need for a pilot hole, can automatically deburr holes as you drill.
Ø Special step stucture, can drill different size holes,
Ø 1 step drill can be used as 1 box of drill bit.
Ø Working with water cooling, can effectively extend the service life of bit, drilling speed 250--400 recommended. Widely used to cut holes in a variety of material like steel, wood, thin iron, aluminum alloy, insulation boards, PVC sheet , ect.
Specification:
Type: Cone Drill Bit
Material: High Speed Steel
Coating: Titanium Coated
Shank: Round
4-12mm: 4-6-8-10-12mm 5 steps
4-20mm:
4-6-8-10-12-14-16-18-20mm 9 steps
4-32mm:
4-6-8-10-12-14-16-18-20-22-24-26-28-30-32mm 15 steps