milwaukee_48899372
milwaukee_48899372_2
milwaukee_48899372_3
milwaukee_48899372
milwaukee_48899372_2
milwaukee_48899372_3

MILWAUKEE 48899372 step drill Cobalt AlCrN 4-20 mm

Recommended Retail Price €147.98
81.20 tax incl.
€67.11 excl. VAT (incl. all environmental contributions)
On order: delivered from 02/10/2026
pack

  • Delivery by DHL

Fast drilling with Milwaukee

  • Superior resistance to heat: Engineered with cobalt steel and an AlCrN coating, it lets you drill through stainless steel without overheating.
  • Accurate starts without walking: The specialized tip geometry engages immediately on metal surfaces so you avoid pre-drilling and unwanted slipping.
  • Secure non-slip chuck grip: Featuring a 3-flat shank design, this accessory prevents slippage inside the tool chuck during heavy drilling tasks.

With the Milwaukee 48899372 step drill bit, you can drill and deburr clean holes from 4 to 20 mm in sheet metal, control panels, and tough stainless steel. You eliminate the hassle of swapping standard bits, smoothly stepping through 10 hole sizes with one tool. Built from cobalt steel with a heat-resistant AlCrN coating, it reduces friction and delivers up to 10x longer tool life in challenging metals. The dedicated centering tip starts immediately on contact without walking or pre-drilling on slick surfaces. Fitted with an 8 mm 3-flat shank, this bit stays firmly locked in your chuck for maximum torque transfer and complete drilling control.

Product description

  • New Aluminium Chromium Nitride (AlCrN) coating for 10x more life vs. MILWAUKEE standard step drill.
  • For steel and stainless steel.
  • 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 cordless tools and also prevents deformation of the drilled material.
  • Optimised 2 flute ground sharpened edge geometry for 2 x faster and smoother cutting.
  • With 3 flat secure grip to prevent step drill from slipping in the chuck and ensure maximum transmission of torque.
  • Laser engraved size markings for best long term visibility.
Key features according to our expert
  • Smallest diameter: 4 mm
  • Largest diameter: 20 mm
Specifications / All features
  • Brand: MILWAUKEE
  • EAN: 0045242603862
  • Supplier number: MILWAUKEE 48899372
Smallest diameter
4 mm
Largest diameter
20 mm
Number of steps
10
Overall length (mm)
62
Shaft diameter (mm)
8
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