MILWAUKEE 4-20mm 9-Step HSS Step Drill Bit

MPN 48899320
In Stock
More than 1 million happy customers
Top 100 PowerRetail
30 Day Online Returns' with 'Australia’s largest professional tool retailer


The MILWAUKEE® line of step drill bits far surpasses the competition. With a single cutting edge design, you will have more control and a cleaner finish. Made of high-speed steel, these new step drill bits are durable and designed to drill through most metals.

The black oxide finish prevents corrosion and has a great capacity to work with drilling lubricants. The new speed start tip prevents bit walking and allows faster penetration. With laser etched markings you will always know your hole guesswork!

MILWAUKEE® Step Drill Bits are proudly Made in the USA.


      • Single Cutting Edge - Provides true round holes every time
      • High-Speed Steel Make-up - Ideal for cutting into stainless steel, aluminium, brass, copper, plastic and more
      • Black Oxide Finish - Resists corrosion for longer life
      • Speed Start Tip - Starts fast and reduces the risk of bit walking
      • Laser Etched Markings - For fast, easy hole size identification
      • 3-Flat Shank - Prevents bit from slipping in the chuck


      • Steps: 9-Step
      • Diameters: 4-20 mm
          • 4.0 mm
          • 6.0 mm
          • 8.0 mm
          • 10.0 mm
          • 12.0 mm
          • 14.0 mm
          • 16.0 mm
          • 18.0 mm
          • 20.0 mm
      • Cylindrical Flatted


Brand Milwaukee
Part No 48899320
Barcode 045242344406

Pickup In Store

If you don't want to pay for delivery or need to ASAP, you can pick it up in store. Just bear in mind not all stores will have everything in stock. You'll be able to see if they do during the checkout process.

Free Delivery

Most products are included in free delivery, however some are excluded as follows:

  • Orders and/or items under $99.
  • Orders and/or items that are deemed bulky, large or heavy.
  • Clearance items.
  • Orders that include or items that are classed as dangerous goods.
  • Remote areas are excluded from free delivery and you will either be charged delivery at checkout or may be contacted prior to delivery to confirm delivery charges if necessary.
  • Interstate deliveries.

Total Tools reserve the right to change or withdraw free delivery at any time.

Estimated Delivery Timeframes

If you opted to collect in store you will receive an email to inform you when your goods are ready for collection.

If you opted for delivery, you will receive an email when the goods have been despatched to the couriers with details so you can track our order.

We aim to despatch all orders within 1-2 business days. In the unusual event of a delay to the despatch of your order you will be contacted at the earliest opportunity. Once the order has been despatched the estimated delivery time is as follows:

  • Metro (Excludes Hobart Metro) 1-2 business days
  • Hobart Metro 3-4 business days
  • Regional Areas 3-4 business days
  • Remote Areas 6-9 business days

Please note that these delivery timeframes are estimates and are not guaranteed.


Changed your mind? No worries. You just need to get the product back to the store it was shipped from (this is on your receipt) within 30 days, unused and in its original packaging and we'll give you a refund (excluding delivery costs). You can read our full returns & exchanges policy here (special order items are excluded from this returns policy).


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