HSS Co twist drill stub length
1.premium HSS Co
2.plain shank
3.25 degree helix angle for drill
4.130 degree point angle

HSS Co twist drill stub length nc spotting drill

Materials: premium HSS Co
25°helix angle for drill
Tolerance of shank diameter is h7
Tolerance of tool diameter is h8
130°point angle for drill
The TiCN, TiAIN is available on your request.

Application:
Designed for accurate drilling on NC/CNC machines. Drilling into hand and tough materials, alloyed, tool steel, inconel, nimonic, cast iron, aluminium die cast, etc.

Advantage:
Helical thinning-good chip removal, self-centering, reducing thrust and improving accuracy.
Reinforced web and stub length-increasing rigidity, reducing vibration and deflection.
Premium Cobalt HSS with superior TiN coating-higher speed and feed, longer service life.
High quality-good surface finishes, high productivity and weeding second operation.
        
Main details
Drill diameter: 2~13mm
Flute length: 12~51mm
Overall length: 44~108mm