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expired Posted by iconian | Staff • Aug 24, 2022
expired Posted by iconian | Staff • Aug 24, 2022

14-Piece Bosch Cobalt M42 Twist Drill Bit Set with Case

+ Free Shipping

$27

$145

81% off
Amazon
34 Comments 25,989 Views
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Deal Details
Amazon has 14-Piece Bosch Cobalt M42 Twist Drill Bit Set with Case (CO14B) for $27.41. Shipping is free.

Thanks to Deal Editor iconian for finding this deal.

Product Details:
  • Cobalt M42 drill bit 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 with 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
  • Split points on bits 1/8 in. and larger allow for easy starts with no skating, eliminating the need for a center punch
  • 3-flat shank on bits 3/16 in. and larger deliver better bit grip
  • Includes: one 1/16 in., one 5/64 in., one 3/32 in., one 7/64 in., two 1/8 in., one 9/64 in., one 5/32 in., one 3/16 in., one 7/32 in., one 1/4 in., one 5/16 in., one 3/8 in., one 1/2 in.

Editor's Notes

Written by powerfuldoppler | Staff
  • About this deal:
    • Our research indicates that this offer is $11.58 lower (29% savings) than the next best available price from a reputable merchant with prices starting from $38.99
  • About this product:
    • Rating of 4.7 from over 3,400 Amazon customer reviews.
  • About this store:
  • Please read the Forum Thread for more deal discussion.

Original Post

Written by iconian | Staff
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Amazon has 14-Piece Bosch Cobalt M42 Twist Drill Bit Set with Case (CO14B) for $27.41. Shipping is free.

Thanks to Deal Editor iconian for finding this deal.

Product Details:
  • Cobalt M42 drill bit 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 with 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
  • Split points on bits 1/8 in. and larger allow for easy starts with no skating, eliminating the need for a center punch
  • 3-flat shank on bits 3/16 in. and larger deliver better bit grip
  • Includes: one 1/16 in., one 5/64 in., one 3/32 in., one 7/64 in., two 1/8 in., one 9/64 in., one 5/32 in., one 3/16 in., one 7/32 in., one 1/4 in., one 5/16 in., one 3/8 in., one 1/2 in.

Editor's Notes

Written by powerfuldoppler | Staff
  • About this deal:
    • Our research indicates that this offer is $11.58 lower (29% savings) than the next best available price from a reputable merchant with prices starting from $38.99
  • About this product:
    • Rating of 4.7 from over 3,400 Amazon customer reviews.
  • About this store:
  • Please read the Forum Thread for more deal discussion.

Original Post

Written by iconian | Staff

Community Voting

Deal Score
+25
Good Deal
Visit Amazon

Price Intelligence

Model: Bosch 14-Piece Assorted Cobalt Jobber Length Twist Drill Bit Set Stainless Steel | CO14B

Deal History 

Sale Price
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Current Prices

Sort: Lowest to Highest | Last Updated 3/26/2025, 06:28 PM
Sold By Sale Price
Amazon$32.53
Lowe's$34.98
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Top Comments

The crossed out price is irrelevant, just ignore it.

According to price trackers, this set is $33 most of the time and the lowest it's been is $26.71, so the current deal price is pretty good.

I just wish they were made anywhere other than China.
Not sure who would ever pay $145 for this
msrp is that, manufacturer SUGGESTED retail price, i.e that # does NOT matter.. it's their figment of imagination.

34 Comments

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Aug 24, 2022
150 Posts
Joined Apr 2016
Aug 24, 2022
EugeneMellencamp
Aug 24, 2022
150 Posts

Our community has rated this post as helpful. If you agree, why not thank EugeneMellencamp

Not sure who would ever pay $145 for this
1
1
Original Poster
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Aug 24, 2022
73,295 Posts
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Aug 24, 2022
iconian
Original Poster
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Sr. Deal Editor
Aug 24, 2022
73,295 Posts
Quote from EugeneMellencamp :
Not sure who would ever pay $145 for this

msrp is that, manufacturer SUGGESTED retail price, i.e that # does NOT matter.. it's their figment of imagination. Smilie
Expert
This user is an Expert in Home & Home Improvement
Aug 24, 2022
17,912 Posts
Joined Jun 2012
Aug 24, 2022
jeff34270
Expert
This user is an Expert in Home & Home Improvement
Aug 24, 2022
17,912 Posts

Our community has rated this post as helpful. If you agree, why not thank jeff34270

The crossed out price is irrelevant, just ignore it.

According to price trackers, this set is $33 most of the time and the lowest it's been is $26.71, so the current deal price is pretty good.

I just wish they were made anywhere other than China.
3
2
Aug 24, 2022
326 Posts
Joined Jan 2014
Aug 24, 2022
brianb4299
Aug 24, 2022
326 Posts
Quote from EugeneMellencamp :
Not sure who would ever pay $145 for this
And if you click the 21 piece option on Amazon it's only $60. That's the normal price. So the set with 7 more drill bits costs half the "normal" price of the 14 piece. 🤔
1
Original Poster
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Aug 24, 2022
73,295 Posts
Joined Feb 2006
Aug 24, 2022
iconian
Original Poster
Pro
Sr. Deal Editor
Aug 24, 2022
73,295 Posts
Quote from brianb4299 :
And if you click the 21 piece option on Amazon it's only $60. That's the normal price. So the set with 7 more drill bits costs half the "normal" price of the 14 piece. 🤔
I looked at that earlier too, and I think there maybe only 1 or 2 new drill sizes, rest are just multiples, which is fine obviously...
Aug 25, 2022
81 Posts
Joined Apr 2019
Aug 25, 2022
LavenderFog180
Aug 25, 2022
81 Posts
very good bits, drill stainless steel almost like wood.
Aug 25, 2022
1,158 Posts
Joined Dec 2008
Aug 25, 2022
madcow3417
Aug 25, 2022
1,158 Posts
Dammit, I just paid $144.79 for the same set. I haven't opened it yet, I wonder if I can return it.
9
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Aug 25, 2022
828 Posts
Joined Feb 2010
Aug 25, 2022
rotarypower101
Aug 25, 2022
828 Posts
Does anyone have a suggestion for a decent quality M35 or M42 115Pc cobalt kit?

Hopefully one that allows identical single replacements if ever needed?

Do any of the readily avalible brands have a set like this? Or is there a "economical" Machinists brand to look at that has single replacements avalible, to keep a complete set together?

"Drill Hog" is a scam, avoid them?
Last edited by rotarypower101 August 25, 2022 at 08:35 AM.
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This user is an Expert in Home & Home Improvement
Aug 25, 2022
17,912 Posts
Joined Jun 2012
Aug 25, 2022
jeff34270
Expert
This user is an Expert in Home & Home Improvement
Aug 25, 2022
17,912 Posts
Quote from rotarypower101 :
Does anyone have a suggestion for a decent quality M35 or M42 115Pc cobalt kit?

Hopefully one that allows identical single replacements if ever needed?

Do any of the readily avalible brands have a set like this? Or is there a "economical" Machinists brand to look at that has single replacements avalible, to keep a complete set together?

"Drill Hog" is a scam, avoid them?
Drill Hog is a scam. They don't even have a real address and though everything is smattered with US flags, barely anything they sell (except maybe the cases the Chinese bits come in) is US made.
Aug 25, 2022
3 Posts
Joined Aug 2022
Aug 25, 2022
SeriousFruit918
Aug 25, 2022
3 Posts
I bought these for 26.71 in June, they work great on hardened steel.
Aug 25, 2022
828 Posts
Joined Feb 2010
Aug 25, 2022
rotarypower101
Aug 25, 2022
828 Posts
Quote from jeff34270 :
Drill Hog is a scam. They don't even have a real address and though everything is smattered with US flags, barely anything they sell (except maybe the cases the Chinese bits come in) is US made.
Thats a shame, because their claim it to good to be true...And I guess it is...

Was hoping that because they were avalible on Amazon there would be some accountability they would need to adhere to with their claims clearly stated ?

Based on what you say, sounds like the bits are low grade anyway, probably the same bits in a harbor freight set or comparable to?

Need a quality set of bits, would really like a set of high value bits, ones that can cope with difficult jobs but not prestigious enough to demand a premium...

If anyone has some suggestions for a 115Pc M35/M42 kit to look at, especially one that can easily get single replacements, really want to find a well regarded set.
Aug 26, 2022
2,678 Posts
Joined Jun 2012
Aug 26, 2022
lennonst
Aug 26, 2022
2,678 Posts
Bosch m42 bits held up pretty good so far drilling aluminum. Using ridgid theading oil (cheapest I could find) and zero issues.

I was going to get cheaper no name m35s but don't trust any of those companies (drill America, drill hog, etc.)
Aug 26, 2022
1,133 Posts
Joined Nov 2016
Aug 26, 2022
shigro420
Aug 26, 2022
1,133 Posts
Quote from iconian :
msrp is that, manufacturer SUGGESTED retail price, i.e that # does NOT matter.. it's their figment of imagination. Smilie
Is $145 MSRP or ASRP (Amazon Suggested Retail Price)?
1
Aug 26, 2022
194 Posts
Joined Jun 2018
Aug 26, 2022
NutBucket
Aug 26, 2022
194 Posts
Quote from rotarypower101 :
Does anyone have a suggestion for a decent quality M35 or M42 115Pc cobalt kit?

Hopefully one that allows identical single replacements if ever needed?

Do any of the readily avalible brands have a set like this? Or is there a "economical" Machinists brand to look at that has single replacements avalible, to keep a complete set together?

"Drill Hog" is a scam, avoid them?
Try Chicago-Latrobe, Cleveland, Cle-Line or Viking Drill & Tool. Prepare your wallet.
Last edited by NutBucket August 26, 2022 at 09:43 AM.

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Aug 26, 2022
805 Posts
Joined May 2016
Aug 26, 2022
Spook52
Aug 26, 2022
805 Posts
Nice set. Goes on sale a lot. If you don't need it now, it will be back.

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