MILWAUKEE Step drill 4-12 mm/1 mm steps 48899301

Step drills are ideal for drilling in the following materials: - Alloyed and unalloyed sheet metal, profiles and pipes. - Copper, brass and aluminium. - Stainless steel. - Plastic. - Maximum material thickness 4 mm. - The use of coolant is recommended to increase tool life. - Electricians: Drilling of panels and switch cabinets for cable installations. - HVAC: Access holes in pipes and cables. - Metalworkers: Drilling various diameters and enlarging holes. - Automotive: holes for cable installations (mobile phones, antennas, laying cables). - Maintenance: various applications. Step drills save costs compared to conventional drills: - one drill for different diameters. - the optimum solution for enlarging holes. - More break-proof than standard metal drills. - Easy centring. - Clean and burr-free holes. Splinter-free drilling in plastic. MILWAUKEE® advantages. Centre punching, drilling and deburring in one step. RAPID STRIKE(TM) drill point for easier centring. Special drill point and special step geometry enable chatter-free drilling. Reduced risk of jamming at high speeds. Optimised 2-spiral geometry with sharpened edges for up to 2x faster drilling progress. Made of special steel with black oxide coating for up to 4x longer service life. Optimised for use with cordless tools. Laser marking of the diameters. Each step is relief-ground for optimum drill feed and automatic deburring. Shank with 3 clamping surfaces for a secure hold in the drill chuck and optimum power transmission.