Twist drill bit 228 series

solidfor stainless steelfor aluminum

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-sided 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. HSSE-Co 5: High-performance high-speed steel with 5% cobalt content. High toughness and heat resistance, for drilling in difficult-to-cutting materials with a strength of up to 1100 N/mm². Application areas Main application Steel 900 N/mm² Steel 1,100 N/mm² Stainless steel Aluminium Brass Plastics Other application Bronze Technical data Tip grinding Shape C: Split point Type UNI Tolerance h8 Coating Bronzed / black oxidized surface Cutting direction right cutting Shaft Three-face shank Drilling depth 5 x diameter