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Milwaukee
Description

Step Drill are the best option for enlarging existing holes. More durable than twist drill bits, with a thick core, which resists breakage. For clean burr free holes, less reaming required. Drills plastic without splitting or cracking. Ideal for the following trades/application; Electrical: drilling of panels and cabinets for cable gland installation, plumbing / hvac: access holes for pipework and installtion, 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 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.

Features and Benefits:


  • Spot drill - Drill - Debur - All in one go
  • Rapid Strike tip for improved centring - 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.

Technical Specification:

Pack Qty ea. - 3
Size - Ø4-12:
No. of steps - 7
Overall length (mm) - 65
Shank diameter (mm) - 6

Size - Ø4-20:
No. of steps - 9
Overall length (mm) - 65
Shank diameter (mm) - 8

Size - Ø6-35:
No. of steps - 14
Overall length (mm) - 90
Shank diameter (mm) - 10

Specification

Milwaukee 48899399 3 Piece Step Drill Bit Set (4mm - 12mm / 4mm - 20mm / 6mm - 35mm)

STOCK CODE: EB/MIL48899399
£110.99
(INC VAT)
£92.49
(EX VAT)
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In Stock
Free delivery on orders over 50 (Most UK)
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