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Product Details

Split point (3mm) upwards, and 135° point angle for optimum starting.
Compliant with DIN338 RN for outstanding hole dimensional accuracy.
Always use with cooling agent 75018 .

Technical Specification
Brand Heller
Manufacture ID 212311
Delivery details
Order value: Under £10 £10 & over
Express usually Next Business Day before 6pm £5 Free
Turbo usually Next Business Day before 12 noon £10 £5
Remote areas standard delivery (2-4 days) £5 Free
Order Value: Under £25 Over £25 but less than £75 £75 & Over
£10 £5 Free

Please note items delivered by our suppliers are not available for the options above. Delivery times may vary.

More about Delivery & Returns
Click & Collect details
If you are using our Click & Collect service please note the following:
  • Order online or over the phone and collect in branch from 10 minutes later.
  • Ensure you check stock is available for collection at your chosen branch.
  • Check branch opening hours to ensure you have sufficient time to collect.
  • For items not available for same day collection, place order before 8pm Mon-Sat (4pm Sun) and you can collect Next Business Day (Mon-Fri) after 3pm.
  • If we have your mobile number, we’ll send you a text when your order is ready to collect.
Cobalt Pro Drill Bit 4.5mm is rated 4.4 out of 5 by 27.
Rated 5 out of 5 by from Really sharp drill bit Lasting well, still sharp after drilling several holes through mild steel plate.
Date published: 2018-11-03
Rated 5 out of 5 by from Excellent bit I already had the smaller sizes so I knew the quality was good. I can recommend this make.
Date published: 2018-09-03
Rated 3 out of 5 by from Some Good, some bad. Had to buy a few of the Heller Colbart drill bits to drill out 3 broken locking wheel nuts. 1st one cut great. 2nd was rubbish, didn't ptouch it and the 3rd was as the first. I used drilling lubricant as well. The 2nd must have been a dud !!!!. 1 out of 3 isn't bad but it should be 3 out of 3.
Date published: 2018-07-07
Rated 5 out of 5 by from Cobalt drill bit Needed a quality drill bit for drilling through steel. Purchased a 3mm & a 6mm to use to makke the pilot holes. Brilliant dells and went through the steel 10mm, like butter.
Date published: 2018-02-26
Rated 5 out of 5 by from Great value - treat with care & take your time Managed 170 holes through 3mm mild steel by following the advise in other reviews to lubricate. Lube the bit at the point to be drilled so both steel and bit are lubed, buy more than 1 bit to allow you to swop out after every 2 holes so as to allow the bits to stay cool, and take a break every 20 holes...takes longer but the job gets done without the hastle of going out to buy more bits. Check out also your drill speed - lots of online guidance via google. Still life left in both bits.
Date published: 2018-02-18
Rated 5 out of 5 by from Works well on Stainless Steel sheet Bought this drill bit to make holes in a Stainless Steel chimney that my existing drill bits were struggling with. Cuts fine and was still sharp after drilling a dozen or so holes.
Date published: 2018-02-06
Rated 5 out of 5 by from Excellent pruduct Bought this to drill stainless steel, it worked perfectly and also made easy work of mind steel. Can't see the point of buying HSS drills anymore
Date published: 2018-01-17
Rated 5 out of 5 by from quality drill bit good quality drill bit used for steel
Date published: 2018-01-16
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