MILWAUKEE 4-20mm 9-Step 1/4-Hex HSS-TiAlN Spiral Flute Step Drill Bit - SHOCKWAVE

MPN 48899263
In Stock
More than 1 million happy customers
Top 100 PowerRetail
30 Day Online Returns' with 'Australia’s largest professional tool retailer


MILWAUKEE® SHOCKWAVE™ IMPACT DUTY™ Step Drill Bits are engineered to deliver a durable and fast impact step bit hole drilling solution. MILWAUKEE® Step Drill Bits give you best-in-class performance in impact drivers with the versatility to be used in drills.

The ¼” hex shank has an optimised SHOCKZONE™ body providing you with a more durable shank, reducing early shank breaks. The Titanium Aluminum Nitride (TiAlN) coating helps reduce heat build-up and deliver up to 5X longer life compared to a standard step drill bit.

Additionally, these MILWAUKEE® step drill bits feature a RAPID STRIKE™ tip and dual spiral flute produce 2X faster holes compared to a standard step drill bit.

MILWAUKEE® SHOCKWAVE™ IMPACT DUTY™ Step Drill Bits are proudly Made in the USA.


      • SHOCKWAVE™ 1/4" Hex Shank - Suitable for use in Impact Drivers
      • RAPID STRIKE™ Tip - Produces 2X faster holes
      • Dual Spiral Flute - Removes drilled material (swarf) faster which increases drilling speed
      • Titanium Aluminium Nitride (TiAlN) Coating - Reduces heat build-up and delivers up to 5X longer life


      • Steps: 9-Step
      • Diameters: 4-12 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
      • Overall Length: 85 mm
      • Shank: 1/4-Hex with Power Groove


Brand Milwaukee
Part No 48899263
Barcode 045242505180

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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