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Bosch Powerchange HSS Cobalt Pilot Drill (52111)

For quick changing between holesaws. Use with Bosch Powerchange cobalt multi-construction holesaws.

  • Quick Change Between Holesaws
  • One Arbor Fits All Diameters
  • Precise Cutting with No Wobble Between Holesaw & Arbor
  • Pilot Drills have Self-Centring Split Tips
  • Cobalt Pilot Drills for Stainless Steel & Hard Metals

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Bosch Powerchange HSS Cobalt Pilot Drill is rated 3.2 out of 5 by 7.
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Rated 1 out of 5 by from You need a box of these I drill quite a lot of holes of varying sizes in boat hulls both steel and GRP, I thought I would use these for steel but as others have found they just snap so easily, I have reverted to the HSS ones which though they don't cut so well at least they don't snap off and you can resharpen them if you're old school.
Date published: 2016-02-21
Rated 4 out of 5 by from Cobalt worth the extra Quite pricey for a drill but if you have a powerchange you need it, there is no alternative. Have used both the hss and the cobalt and found the cobalt to be well worth the extra.
Date published: 2015-05-26
Rated 2 out of 5 by from What Have Bosch Done? Had the Bosch kit for a few years, the holesaws used to be really good, no they don't seem to be man enough anymore. This pilot drill seems to slip out of the arbor which is really annoying. Also, as the other reviewers say, these drill bits do break quite easily. So its best to drill a pilot with a slightly smaller HSS bit then go through with the Bosch pilot.
Date published: 2015-02-17
Rated 5 out of 5 by from Cobalt drill Excellent, cuts though a range of materials with ease.
Date published: 2014-11-18
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1 Question  1 Answer

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IS there a smaller diamter drill bit of this type?
15 Sep 2016
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Basildon
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Answers

Answer: 
Hi RWRW. The diameter of this drill bit is 7mm.
12 Oct 2016
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  • 2016-11-18 T05:36:51.185-06:00
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Specification
Brand Bosch
Model No 2 608 584 677
Pack Size 1
Pieces in Pack/Case 1
Product Type Powerchange HSS Cobalt Pilot Drill
Shank Size ¼ "
Shank Type Hex Shank
Total Product Weight 22 kg

HSS cobalt pilot drill.