产品描述：
Swiss+Tech Jobber Drill Sets HSS TiN-Tip
Swiss+Tech TiN-tip coated jobber drills have a TiN coating on the working drill point and a bright body, suitable for drilling in steel, cast steel alloyed and non alloyed, grey cast iron, graphite and malleable cast iron.
Point angle: 118.
Helix angle: Normal.
Web thickness: Standard.
Relief angle: Normal.
Tolerance of diameter: h8.
Tolerance of shank: f11.
Manufactured to BS 328, DIN 338 & DIN 1412A.
19 Piece