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GimmeYoTots 24.4K Views
Feb 3, 2023 10:54 PM

14-Piece Bosch Cobalt M42 Drill Bit Set w/ Case

$28

$33

15% off
+ Free Shippingat Amazon
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Deal Details
Amazon has 14-Piece Bosch Cobalt M42 Drill Bit Set w/ Case (CO14B) on sale for $27.78. Shipping is free.

Thanks to Community Member GimmeYoTots for sharing this deal.

Product Information:
  • Provides upgraded M42 Cobalt jobber-length bits designed for durability, high heat resistance and hardened surface for stainless steel, cast iron, titanium, light-gauge metal and aluminum
  • Enhanced M42 alloy material – contains 8% Cobalt alloy that delivers 10x life vs. Standard bits
  • High-heat resistant bits – withstand high-temperature applications for extended periods of time
  • Thick web-helix design – provides additional stability in tough applications
  • Surface-hardened tip – penetrates tough abrasive materials
  • Includes: 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 3/16", 7/32", 1/4", 5/16", 3/8", 1/2"

Editor's Notes

Written by Corwin | Staff
  • About this deal:
    • This price is $5.20 lower (15.76% savings) than the next best available price from a reputable merchant, with prices starting at $32.98 at the time of this posting.
  • About this product:
    • This drill bit set has a rating of 4.7 out of 5 based on over 4,060 customer reviews on Amazon.com
  • About this store:
  • Additional Note:
    • Please refer to the Forum Thread for additional discussion regarding this deal.

Original Post

Written by GimmeYoTots
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Amazon has 14-Piece Bosch Cobalt M42 Drill Bit Set w/ Case (CO14B) on sale for $27.78. Shipping is free.

Thanks to Community Member GimmeYoTots for sharing this deal.

Product Information:
  • Provides upgraded M42 Cobalt jobber-length bits designed for durability, high heat resistance and hardened surface for stainless steel, cast iron, titanium, light-gauge metal and aluminum
  • Enhanced M42 alloy material – contains 8% Cobalt alloy that delivers 10x life vs. Standard bits
  • High-heat resistant bits – withstand high-temperature applications for extended periods of time
  • Thick web-helix design – provides additional stability in tough applications
  • Surface-hardened tip – penetrates tough abrasive materials
  • Includes: 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 3/16", 7/32", 1/4", 5/16", 3/8", 1/2"

Editor's Notes

Written by Corwin | Staff
  • About this deal:
    • This price is $5.20 lower (15.76% savings) than the next best available price from a reputable merchant, with prices starting at $32.98 at the time of this posting.
  • About this product:
    • This drill bit set has a rating of 4.7 out of 5 based on over 4,060 customer reviews on Amazon.com
  • About this store:
  • Additional Note:
    • Please refer to the Forum Thread for additional discussion regarding this deal.

Original Post

Written by GimmeYoTots

Community Voting

Deal Score
+35
Good Deal

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25 Comments

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Feb 5, 2023 5:38 PM
709 Comments
Joined Nov 2010
mcosfFeb 5, 2023 5:38 PM
709 Comments
wow, what's up with the MSRP? crazy
2
Feb 5, 2023 5:40 PM
958 Comments
Joined Apr 2014
CaptainCheap0Feb 5, 2023 5:40 PM
958 Comments
Op I'll trade you my local Menards for a Microcenter if you would like.
2
Feb 5, 2023 5:53 PM
776 Comments
Joined Jul 2020
MattacksFeb 5, 2023 5:53 PM
776 Comments
Quote from mcosf View quoted comment :
wow, what's up with the MSRP? crazy
Although that's a bit high, and it probably never actually sells for that MSRP, cobalt bits are expensive. You really don't want to waste these where a high speed steel bit will suffice. These are for drilling into really hard materials.
Original Poster
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Feb 5, 2023 6:14 PM
5.5K Comments
Joined Feb 2019
GimmeYoTotsFeb 5, 2023 6:14 PM
Original Poster
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Expert
This user is an Expert in Home & Home Improvement
5.5K Comments

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Quote from CaptainCheap0 View quoted comment :
Op I'll trade you my local Menards for a Microcenter if you would like.
Sorry, I have neither; so nothing to trade. I do have a Rural King, though!

As an aside - I do own this set. I own a bunch of different drill bit sets. This Bosch set does live up to the Project Farm hype. I had to drill out a couple completely rusted bolts on a sensor on one of my cars (using a close quarter drill) and these bits cut through that steel like the proverbial hot knife through butter. I agree the MSRP is a bit of a joke, but these are unquestionably worth the normal ~ $35 Amazon asking price.
Last edited by GimmeYoTots February 5, 2023 at 10:30 AM.
1
Feb 5, 2023 11:24 PM
468 Comments
Joined Jun 2011
FaintheartedFeb 5, 2023 11:24 PM
468 Comments
I think cobalt drill bits can be sharpened.
Feb 6, 2023 1:30 AM
2.9K Comments
Joined Feb 2007
HardwyreFeb 6, 2023 1:30 AM
2.9K Comments
Quote from Fainthearted View quoted comment :
I think cobalt drill bits can be sharpened.
Yes. It's highly recommended to use cutting fluid or other heat mitigation tricks, but otherwise they sharpen just fine.
1
Feb 6, 2023 1:36 AM
2.9K Comments
Joined Feb 2007
HardwyreFeb 6, 2023 1:36 AM
2.9K Comments
I have this exact set and it works fantastic especially when other bits fail. I need to learn to sharpen them though because I've abused a couple bits so might as well grab a second set.

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Feb 6, 2023 3:09 AM
890 Comments
Joined Feb 2010
rotarypower101Feb 6, 2023 3:09 AM
890 Comments
Possible anyone has first hand experience with these Bosch M42 VS harbor freight M35?
Wish there was a affordable M42 115pc indexed kit out there.
1
Feb 6, 2023 2:50 PM
389 Comments
Joined Feb 2011
fo4imtippinFeb 6, 2023 2:50 PM
389 Comments
I have these m42 cobalt as well as an m35 set. The m42 have 8% cobalt over 5%. The both work, but the m42 drill a little easier. I have broken more m42 bits though because they are more brittle when I push through the hole and rotate them. For steel, these m42 are the best.
Feb 6, 2023 2:52 PM
2.6K Comments
Joined Nov 2018
drsnowmonFeb 6, 2023 2:52 PM
2.6K Comments

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I needed to install a front mount intercooler on my VW. I tried Kobalt, Dewalt, and Makita, and they all broke. This one went through my front crash guard, it's well worth the price
1
Feb 6, 2023 3:03 PM
16.6K Comments
Joined Nov 2006
psycttoFeb 6, 2023 3:03 PM
16.6K Comments
Quote from drsnowmon View quoted comment :
I needed to install a front mount intercooler on my VW. I tried Kobalt, Dewalt, and Makita, and they all broke. This one went through my front crash guard, it's well worth the price
FWIW...
sounds like you need less pressure, less speed and some cutting oil perhaps Wink
1
1
Feb 6, 2023 3:08 PM
16.6K Comments
Joined Nov 2006
psycttoFeb 6, 2023 3:08 PM
16.6K Comments
Quote from mcosf View quoted comment :
wow, what's up with the MSRP? crazy
because Amazon is full of sh1t... MSRP listed on their site is always garbage.
CCC says average price since 2019 is 32$, still a good deal, just not earthshattering.
Feb 6, 2023 4:17 PM
2.6K Comments
Joined Nov 2018
drsnowmonFeb 6, 2023 4:17 PM
2.6K Comments

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Quote from psyctto View quoted comment :
FWIW...
sounds like you need less pressure, less speed and some cutting oil perhaps
Low speed, less pressure, cutting oil, yes I'm well aware of that but thanks for your comment for others to see for proper hard metal drilling technique
2
1
Feb 6, 2023 4:52 PM
332 Comments
Joined Jun 2011
rexqmanFeb 6, 2023 4:52 PM
332 Comments
These are some of my favorite drill bits. Definitely worth the price and lasts a good long time.

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Feb 6, 2023 6:21 PM
586 Comments
Joined Apr 2014
ryanchu06Feb 6, 2023 6:21 PM
586 Comments
Quote from rotarypower101 View quoted comment :
Possible anyone has first hand experience with these Bosch M42 VS harbor freight M35?
Wish there was a affordable M42 115pc indexed kit out there.
I'd recommend www.drillhog.com. They have them. I bought their set during holidays for a discount. They are USA made too
2

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