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Bosch X-Pro Metal Drill Bit Set 7Pcs

Product Code: 48930

7 Piece Set. High torsion HSS-R rolled drill bit set with reduced risk of breakage. Suitable for alloyed and non-alloyed steel up to a tensile strength of 900 N/mm², non-ferrous metals, cast iron, hard plastics. Rolled spiral flute and ground point with oxide coating allows rapid chip removal. Features 2 cutters and 2 flutes. Supplied in a compact case.

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Product contents:
2, 3, 4, 5, 6, 8 and 10mm.


3.4286 5 7

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Bosch X-Pro Metal Drill Bit Set 7Pcs 3.4 5 7 7
What am I doing wrong here? I bought this product to drill holes 10mm wide, through 4 met post spikes. The material is galvanised steel about 3 mm thickness. I used 18V combi dril and the result I got was 1) lots of noise 2) a very shiny conical dip on the steel surface 3) a very worn out drill bit. Finally I started with the smaller drill bit to create a hole and then went up the size to make it bigger. Took me about 1 hour to do eight holes. 18 Sep 2014
Snapped on first use I realise I am no expert but I have been drilling holes in things for several decades. I accept that drill bits snap occasionally but this one went within 1 sec of first use. I had already drilled a hole with a 3.5mm bit but I needed it a little bigger so I used the new 4mm bit. It snapped almost instantly although not quickly enough to not get itself jammed in the hole. Rather than speeding things up, I then had to drill 2 completely new holes because I couldn't remove the broken drill bit. I have since used the 3mm bit without any problems so hopefully the rest of the bits will also be ok. For the price, I can't be bothered to complain and I will just buy a replacement 4mm. Still, it is very annoying and the reason why I cannot recommend this drill bit set. 4 Sep 2014
A cut above the rest Excellent drill bits that's why I bought Bosch. A first class service and only a few hundred metres from my home. 27 Jun 2014
Good quality Good quality as you would expect from Bosch. I like the handle case too. Very compact and fairly robust. I always lose my drill bits so I like the inclusion of the case. 16 Jun 2014
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Brand Bosch
Pack Size 1
Total Product Weight 0.2 kg