DESCRIPTION: Suitable for portable or stationary drilling of high alloy content steels and metals with a tensile strength up to 1100N/mm?. The ‘no-walk’ tip allows for easier penetration of all surfaces (5mm and above). Cleaner, more accurate, burr-free holes due to recessed cutting wings. No slip shank; spin proof three sided shaft for optimal grip in drill chuck. 5% cobalt alloyed High Speed Steel. Unique tip improves efficiency and eliminates walking.