Step drills are ideal for drilling into the following materials: - Ferrous & non-ferrous sheets metals, profiles and pipes. - Copper, brass and aluminium. - Stainless steel. - Plastics. - Maximum material thickness 4 mm. - To ensure best lifetime we recommend the use of a coolant.

Trades: - Electrical: drilling of panels and cabinets for cable gland installation. - Plumbing / HVAC: access holes for pipework and installation. - Metal workers / fabrication: various sizes and hole enlargement. - Automotive: holes for cable installation (mobile telephones, antennas, re-directing electrical wiring). - Maintenance repair operations: various applications, sizes and hole enlargement.

Step Drill advantages over conventional drill bits: - One drill bit to drill multiple sizes - Do more carry less! - Best option for enlarging existing holes. - More durable than twist drill bits, thick core resists breakage. - More accurate and less walking, tip starts on contact. - Clean burr free holes, less reaming required. - Drills plastic without splitting or cracking.

Milwaukee® Advantages

Spot drill - Drill - Debur - 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 deformation of the drilled material.

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.

48899301 - 4-12mm, 9 steps, 65mm long, 6mm Shank

48899320 - 4-20mm, 9 steps, 65mm long, 8mm Shank

4899332 - M6 - M32, 13 steps, 92mm long, 10mm Shank

48899335 - 6-35mm, 14 steps, 90mm long, 10mm Shank

48899340 - 6-40.5mm, 17 steps, 90mm long, 10mm Shank