Pakopinių grąžtų rinkinys COBALT 10 vnt.

Includes 2 x step drill bits: 4 - 12 mm/1, 4 - 20 mm. THUNDERWEB metal drill bits: 2 x 2 mm, 2 x 3 mm, 2 x 4 mm, 1 x 5 mm, 1 x 6mm Step drills are ideal for drilling into the following materials: - Ferrous and non-ferrous sheets metals, profiles and pipes. - Copper, brass and alum Trades: - Electrical: drilling of panels and cabinets for cable gland installation. - Plumbing / HVAC: access holes for pipework and installation. - M Step Drill advantages over conventional drill bits: - One drill bit to drill multiple sizes - Do more carry less! - Best option for enlarging existing Spot drill - Drill - Deburr - All in one go Rapid Strike tip for improved centering - less walking and fast drilling without the need to punch or pre drill the material. Special tip and step geometry for jam-free performance - less risk of drill snagging when used with high speed cordless tools and also prevents deform Optimised 2 flute ground sharpened edge geometry for 2 x faster and smoother cutting. Produced from custom engineered steel with black oxide coating for 4 x longer life. Optimised for use with high speed cordless drills. Laser engraved size markings for best long term visibility. Each step is relief ground to drill and deburr automatically. With 3 flat secure grip to prevent step drill from slipping in the chuck and ensure maximum transmission of torque.