Twist drill bit set DIN 338 type UNI, HSSE-Co 5 in plastic case – 19 pcs.

This high-performance twist drill was specially developed for portable use in drills and cordless drill drivers (best performance up to 5.0 mm material thickness).
“ The three-surface shank ensures excellent fixation in the drill chuck with little effort. The shaft also ensures optimum power transmission. No spinning of the drill bit!
“ The 135º high-performance cutting edge ensures very high centering accuracy, especially for hand-held applications with the cordless drill driver. The cutting edge prevents slipping when drilling curved surfaces.
“ Increased battery life by reducing cutting forces.
“ The black bevel increases wear resistance and prevents cold welding and built-up edges.
“ The 40º helix angle enables perfect and fast chip removal and ensures high cutting speeds with increased stability and accuracy.
HSSE-Co 5:
High-performance high-speed steel with 5 % cobalt content. High toughness and heat resistance, for drilling holes in difficult-to-machine materials with a strength of up to 1100 N/mm².