The FISCH Alu Speed Ice Drill Bits are a must-have for anyone looking for an extremely durable, ultra-lightweight, and corrosion-resistant drill bit. With replaceable tungsten carbide tips, these bits offer impressive longevity. The steep flute design ensures this bit is effective on snow and ice surfaces. All bits have a hardened chromium-plated 1/2" 3-flats replaceable shank and an overall length of 533mm (21"). NOT FOR USE WITH HAMMER DRILLS.