48899399 - Step drill set, 4 - 12 mm, 4 - 20 mm, 6 - 35 mm (3 pcs)

• 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 - Deburr - All in one go
• RAPID STRIKE TIP™: Accurate start without walking and fast drilling without the need to 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.