HSS-G TiN Coated Jobber Drill Sets

Flute Type
Standard helix,right hand,ground flutes
Point Angle
135° split point 
Surface Treatment
TiN coated
Application
Drills in steel, high tensile steel up to 900N/mm2, cast steel, cast iron, non-ferrous metals and hard plastics.Tin coating will increase the tool life and performance. Compared to traditional HSS jobber drill bits, speed can be increased by 40 -60% and feed by 10 -20% without reducing the life time of the drill bit significantly. TiN is also a poor conductor of heat, so the heat generated during the drilling process is diverted into the chips and coolant and less into the drill bit.
Manufactured To
Din 338
Material
HSS