Twist drill set DIN 338 type UNI HSS-Co 5 - 19 pcs.

This high-performance twist drill has been specially developed for portable use in drills and cordless drill drivers (best performance up to 5.0 mm material thickness).
» The three-face shank ensures excellent fixation in the drill chuck with minimal effort. The shank also ensures optimum power transmission. No spinning of the drill !
» The 135º high-performance cutting edge ensures very high centering accuracy, especially for hand-held applications with cordless drill drivers. The cutting edge prevents slipping when drilling into curved surfaces.
» Increased battery life due to reduced cutting forces.
» The 40º twist angle enables perfect and fast chip removal and ensures high cutting speeds with increased stability and accuracy.  
HSS-Co 5:
High-performance high-speed steel with 5% cobalt content. High toughness and heat resistance, for drilling in difficult-to-machine materials with a strength of up to 1100 N/mm².