HSS Twist drill Bits we manufature are made from HSS with good heat treatment and surface treatment.
Main technical conditions of twist drill.
Manufacturing process: Rolled, milled or fully ground.
Point angle: 118º or 135º
Finish: Black oxide, bright, or Ti-plated
Diameter: 0.2-100mm
Shank: Straight shank, taper shank, hex shank, reduced shank
Material: M2, M7, M35, M42, W9Mo3Cr4V, W4Mo3Cr4V
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