DeWalt 8mm Extreme 2 HSS Drill Bit

Product Code: 31140
DeWalt 8mm Extreme 2 HSS Drill Bit
Product Code: 31140
Stronger and faster than standard bits. Tip starts drilling on contact, eliminating walking for clean accurate holes. Innovative tapered web design greatly reduces breakage. Gold ferrous oxide coating prevents overheating for longer bit life.


Diameter 8mm.
€5.15 Incl. 20% VAT
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Additional Information
Technical Specification
  • Brand : DeWalt
  • Product Length : 117 mm
  • Product Type : Extreme 2 HSS Drill Bit
  • Total Product Weight : 40 kg
  • Model No : DT5052QZ
  • Pack Size : 1
  • Product Diameter : 8 mm
  • Manufacturer Guarantee : 1 Year Manufacturer's Guarantee
  • Pieces in Pack/Case : 1
Product Contents
Delivery & Returns


Standard delivery: €15

Free delivery on all orders over €70.00

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DeWalt 8mm Extreme 2 HSS Drill Bit is rated 4.4054 out of 5 by 74.
Rated 5 out of 5 by from Love these drill bits Due to the tip shape they center well and don't tend to drift when starting so the hole is exactly where you want it. They are fast to drill with but can leave untidy edges as the cut is quite aggressive.
Date published: 2016-07-20
Rated 5 out of 5 by from Great drill bit I used this to drill through 4mm mild steel angle iron, I drilled over 150 holes and it's still going strong. Need I say more.
Date published: 2016-05-31
Rated 5 out of 5 by from Excellent drill I killed three different drill bits drilling holes in scaffold tubes. I read the other reviews on here and wanted to give it a try with this one. Brilliant - job done, drill bit still perfect. DeWalt drill bits for me all the way now.
Date published: 2016-02-05
Rated 5 out of 5 by from Very impressed! Bought a couple of cheap drill HSS drill bits, not from Screwfix, and they went blunt after a couple of uses drilling through only a couple of mm of metal. Following the advice of people writing these reviews I used 3 in 1 oil to keep the bit cool and took it steady when drilling, not adding too much pressure and it works a treat! Have been able to drill several holes so far and still going strong. The extra cost of the drill bit is well worth it.
Date published: 2016-01-31
Rated 5 out of 5 by from These really work! I bought a set of these drills in smaller sizes by mistake and I am so glad I did. When I came back for larger 8mm & 10mm sizes I knew that I wanted this unusual centre tip design. Has drilled through various metal sheet and beams with accuracy and ease.
Date published: 2015-11-10
Rated 5 out of 5 by from Great drill bit Task: remove 1 very stuck cotter pin Step1: After no luck with hammering, pressing etc. had to resort to Step 2: Drill. After about 1 hour & 3 drill bits blunt\broken, retired to bed a frustrated man Step 3: Collected this bit next morning. 10 minutes after getting home job done. Really gave this bit a hard time, but its back in the tool box now & looks as fresh as new! So pleased with this bit I felt inspired to write a review & will be purchasing a set.
Date published: 2015-10-07
Rated 5 out of 5 by from Quality Tough Drill Bit My father always told me to buy the best tools I could afford - I bought cheap HSS bits to drill out some 8mm bolts and wasted my money. This bit drilled out all 6 bolts with ease and still looks new. Job done and lesson learnt.
Date published: 2015-09-13
Rated 2 out of 5 by from Not impressed Bought to drill holes through a hefty ridge beam to bolt on 4x2 timber. First 2 holes were great but the 3rd hole that was it, couldn't get it through. Reverted back to a conventional drill bit that could be sharpened every 4th hole and got the job done in no time at all. For me it was a waste of money.
Date published: 2015-08-19
  • 2016-10-28T08:10CST
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