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expiredTheCosmoKramer posted Apr 01, 2025 02:11 PM
expiredTheCosmoKramer posted Apr 01, 2025 02:11 PM

91-pc BOSCH MS4091 Drilling & Driving Mixed Set

$25

$77

67% off
Amazon
30 Comments 34,012 Views
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Deal Details
Amazon has 91-pc BOSCH MS4091 Drilling & Driving Mixed Set on sale for $24.97. Shipping is free with Prime or on $35+ orders.

Thanks to community member TheCosmoKramer for finding this deal.

Includes:
  • 1" Insert Bits: (2) P0, (2) P1, (2) P2, (2) P3, (2) PZ0, (2) PZ1, (2) PZ2, (2) PZ3, SL3, (2) SL5, SL7, (2) T10, (2) T15, (2) T20, (2) T25, T30, T40, H3, (2) H5, H6
  • 2" Insert Bits: P0, P1, P2, P3, PZ0, PZ1, PZ2, PZ3, SL6, T10, T15, T20, T25, H5, H6
  • Nut Setters: 3/16", (2) 1/4", 9/32", 5/16", 11/32", 3/8", 7/16"
  • Countersink
  • Bit Holder
  • Rachet Screwdriver
  • 25-1/2" Magnetic Extension Pen
  • Titanium Drill Bits: (2) 1/16", 7/64", (2) 1/8", 9/64", (2) 5/32", (2) 3/16", 1/4" Rotary Masonry Drill Bits: (2) 1/8", (2) 5/32", (2) 3/16", (2) 1/4", (2) 5/16", 3/8"
  • Brad Point Bits: 1/8, (2) 3/16", (2) 1/4", (2) 5/16", 3/8"

Editor's Notes

Written by megakimcheelove | Staff
  • Our research indicates that this offer is $21.02 lower (46% savings) than the next best available price from a reputable merchant with prices starting from $45.99.
  • Rated 4.6 out of 5 (13,108 global ratings)
  • Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
  • If you're not a student, there's also a free 1-Month Amazon Prime trial available.

Original Post

Written by TheCosmoKramer
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Amazon has 91-pc BOSCH MS4091 Drilling & Driving Mixed Set on sale for $24.97. Shipping is free with Prime or on $35+ orders.

Thanks to community member TheCosmoKramer for finding this deal.

Includes:
  • 1" Insert Bits: (2) P0, (2) P1, (2) P2, (2) P3, (2) PZ0, (2) PZ1, (2) PZ2, (2) PZ3, SL3, (2) SL5, SL7, (2) T10, (2) T15, (2) T20, (2) T25, T30, T40, H3, (2) H5, H6
  • 2" Insert Bits: P0, P1, P2, P3, PZ0, PZ1, PZ2, PZ3, SL6, T10, T15, T20, T25, H5, H6
  • Nut Setters: 3/16", (2) 1/4", 9/32", 5/16", 11/32", 3/8", 7/16"
  • Countersink
  • Bit Holder
  • Rachet Screwdriver
  • 25-1/2" Magnetic Extension Pen
  • Titanium Drill Bits: (2) 1/16", 7/64", (2) 1/8", 9/64", (2) 5/32", (2) 3/16", 1/4" Rotary Masonry Drill Bits: (2) 1/8", (2) 5/32", (2) 3/16", (2) 1/4", (2) 5/16", 3/8"
  • Brad Point Bits: 1/8, (2) 3/16", (2) 1/4", (2) 5/16", 3/8"

Editor's Notes

Written by megakimcheelove | Staff
  • Our research indicates that this offer is $21.02 lower (46% savings) than the next best available price from a reputable merchant with prices starting from $45.99.
  • Rated 4.6 out of 5 (13,108 global ratings)
  • Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
  • If you're not a student, there's also a free 1-Month Amazon Prime trial available.

Original Post

Written by TheCosmoKramer

Community Voting

Deal Score
+76
Good Deal
Visit Amazon

Price Intelligence

Model: BOSCH 91-Piece Drilling and Driving Mixed Set MS4091

Deal History 

Sale Price
Slickdeal
  • $NaN
  • Today

Current Prices

Sort: Lowest to Highest | Last Updated 8/21/2025, 10:43 AM
Sold By Sale Price
Amazon$39.99

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Top Comments

MemorableBike277
143 Posts
34 Reputation
I agree that this is a great deal for around the house type stuff. For those who may not know:

1. The masonry bits only really work if you have patience and a drill with a hammer feature. An impact drill is not the same. Depending on the material and size hole it could take a while, especially in concrete.

2. The metal drill bits are titanium and won't hold up to abuse. Get some cutting oil and if it's a thick piece of metal try letting it cool down a bit in between holes and it will preserve the longevity. Also more force = faster damage to the cutting edges.

3. Metal and concrete will destroy wood bits. Metal will dull masonry bits. Drilling too fast in wood with a masonry or metal bit can overheat the cutting surface and prematurely dull the bit.
Deucer
339 Posts
53 Reputation
Costco link for people who prefer Costco to Amazon: https://www.costco.com/.product.4000284454.html
mgreen2
368 Posts
279 Reputation
Costco has it on clearance for $25.

29 Comments

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Apr 01, 2025 02:57 PM
3,279 Posts
Joined Feb 2014
iukuApr 01, 2025 02:57 PM
3,279 Posts
This was $35 at costco during holiday last years and some stock carried over to this year. this is great price, i think.
Apr 01, 2025 04:10 PM
368 Posts
Joined Dec 2005
mgreen2Apr 01, 2025 04:10 PM
368 Posts

Our community has rated this post as helpful. If you agree, why not thank mgreen2

Quote from iuku :
This was $35 at costco during holiday last years and some stock carried over to this year. this is great price, i think.
Costco has it on clearance for $25.
2
Apr 01, 2025 05:25 PM
77 Posts
Joined Jun 2019
SharpTent6356Apr 01, 2025 05:25 PM
77 Posts
Either Costco or Amazon - $25 is the right price for this quality product. I'm happy with the purchase!!
Apr 01, 2025 07:44 PM
113 Posts
Joined Jul 2020
GimeDaLootApr 01, 2025 07:44 PM
113 Posts
I bought this set 5-7 years ago, and it is great for weekend DIY warriors! Saved me lots on money on different drills bits! Would highly recommend as a gift or having it
Apr 01, 2025 09:24 PM
339 Posts
Joined Sep 2012
DeucerApr 01, 2025 09:24 PM
339 Posts

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

Costco link for people who prefer Costco to Amazon: https://www.costco.com/.product.4000284454.html
1
Apr 01, 2025 09:36 PM
47 Posts
Joined Nov 2012
elmonoblancoApr 01, 2025 09:36 PM
47 Posts
Quote from Deucer :
Costco link for people who prefer Costco to Amazon: https://www.costco.com/.product.4000284454.html
Costco always (or until they start treating workers as badly as amazon does)
Apr 01, 2025 10:35 PM
7 Posts
Joined Jan 2017
brofonzApr 01, 2025 10:35 PM
7 Posts
Quote from iuku :
This was $35 at costco during holiday last years and some stock carried over to this year. this is great price, i think.
same price at Costco

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Apr 01, 2025 11:04 PM
2,028 Posts
Joined Jul 2004
rcs1Apr 01, 2025 11:04 PM
2,028 Posts
Quote from Deucer :
Costco link for people who prefer Costco to Amazon: https://www.costco.com/.product.4000284454.html
Weirdly Costco.com is having some serious issues with loading today. And when it does, I couldn't add this to my cart.
Apr 01, 2025 11:15 PM
56 Posts
Joined Nov 2013
rhapcityApr 01, 2025 11:15 PM
56 Posts
Shipping is 2-4 weeks out for me.
Apr 01, 2025 11:35 PM
713 Posts
Joined Nov 2015
speedy777Apr 01, 2025 11:35 PM
713 Posts
Quote from rcs1 :
Weirdly Costco.com is having some serious issues with loading today. And when it does, I couldn't add this to my cart.
It is sold out if you used Instacart. You can still able to buy from Costco.com. The Costco instore still have them.
Apr 01, 2025 11:56 PM
29 Posts
Joined Jul 2014
wcunkefeApr 01, 2025 11:56 PM
29 Posts
Got one. Thanks!
Apr 02, 2025 01:33 AM
143 Posts
Joined Oct 2022
MemorableBike277Apr 02, 2025 01:33 AM
143 Posts

Our community has rated this post as helpful. If you agree, why not thank MemorableBike277

I agree that this is a great deal for around the house type stuff. For those who may not know:

1. The masonry bits only really work if you have patience and a drill with a hammer feature. An impact drill is not the same. Depending on the material and size hole it could take a while, especially in concrete.

2. The metal drill bits are titanium and won't hold up to abuse. Get some cutting oil and if it's a thick piece of metal try letting it cool down a bit in between holes and it will preserve the longevity. Also more force = faster damage to the cutting edges.

3. Metal and concrete will destroy wood bits. Metal will dull masonry bits. Drilling too fast in wood with a masonry or metal bit can overheat the cutting surface and prematurely dull the bit.
4
Apr 02, 2025 02:27 AM
3,962 Posts
Joined Mar 2015
CoolDealFinderApr 02, 2025 02:27 AM
3,962 Posts
I would get this from Costco vs Amazon just for the return policy IF anyhting ever went wrong.
Apr 02, 2025 02:45 AM
253 Posts
Joined Dec 2013
jetracerLAApr 02, 2025 02:45 AM
253 Posts
Is this even cheaper at a Costco warehouse?
Just called them, same price at the warehouse.

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Pro
Apr 02, 2025 03:25 AM
581 Posts
Joined Jan 2020
ItsaDrenalin
Pro
Apr 02, 2025 03:25 AM
581 Posts
According to CCC this is lowest price since 2020

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