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

91-pc BOSCH MS4091 Drilling & Driving Mixed Set

$25

$77

67% off
Amazon
30 Comments 34,635 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
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  • Today

Current Prices

Sort: Lowest to Highest | Last Updated 12/26/2025, 03:30 AM
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Amazon$52.99

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Top Comments

MemorableBike277
171 Posts
38 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
347 Posts
53 Reputation
Costco link for people who prefer Costco to Amazon: https://www.costco.com/.product.4000284454.html
mgreen2
384 Posts
279 Reputation
Costco has it on clearance for $25.

29 Comments

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Pro
Apr 02, 2025 06:44 AM
538 Posts
Joined Nov 2014
NotMyCupOfTea
Pro
Apr 02, 2025 06:44 AM
538 Posts
Seem like a trash set. I hat all those individual push strips. Trash bits in a larger than necessary case.
Apr 02, 2025 07:13 AM
1,235 Posts
Joined Sep 2014
brucedcApr 02, 2025 07:13 AM
1,235 Posts
I have this and it's not the best. The drill bits are weak and you'll end up spending more time trying to do your DIY in frustration. It's on clearance for a reason.
1
Apr 02, 2025 11:20 AM
265 Posts
Joined Sep 2014
PheretApr 02, 2025 11:20 AM
265 Posts
I am showing delivery of April 20-May 5th. Same day delivery for me from Costco.
Apr 02, 2025 01:08 PM
823 Posts
Joined Aug 2012
riffdexApr 02, 2025 01:08 PM
823 Posts
Quote from CoolDealFinder :
I would get this from Costco vs Amazon just for the return policy IF anyhting ever went wrong.
What's their return policy at Costco? Never had any problem returning something to Amazon for the record
1
Apr 02, 2025 03:28 PM
47 Posts
Joined Jan 2023
UniqueFog335Apr 02, 2025 03:28 PM
47 Posts
I would pass on this set.
The bits are cheaply made and will strip/break with heavy use.
With light use on soft surface material, it'll probably be fine. But the most valuable thing here is probably the case itself to organize the tools.
You're better off buying some higher quality bits that will last a long time so you won't have to replace them.
Apr 02, 2025 04:00 PM
2,975 Posts
Joined Aug 2017
UkeDogApr 02, 2025 04:00 PM
2,975 Posts
Quote from UniqueFog335 :
I would pass on this set.
The bits are cheaply made and will strip/break with heavy use.
With light use on soft surface material, it'll probably be fine. But the most valuable thing here is probably the case itself to organize the tools.
You're better off buying some higher quality bits that will last a long time so you won't have to replace them.
Agreed.
And I've noticed that Bosch bits that come in their smaller "Custom Case" series are much higher quality than ones in the larger cases (like this one).
Apr 02, 2025 04:02 PM
85 Posts
Joined May 2023
RoyalMitKaseApr 02, 2025 04:02 PM
85 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.
Can confirm what the others have said. Was at my local Costco a couple of day ago and it was $25.

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Apr 02, 2025 05:21 PM
3,290 Posts
Joined Feb 2014
iukuApr 02, 2025 05:21 PM
3,290 Posts
Quote from RoyalMitKase :
Can confirm what the others have said. Was at my local Costco a couple of day ago and it was $25.
Mine is sold out, so I was not aware of the clearance price.
Apr 02, 2025 06:34 PM
823 Posts
Joined Aug 2012
riffdexApr 02, 2025 06:34 PM
823 Posts
Quote from UniqueFog335 :
I would pass on this set.
The bits are cheaply made and will strip/break with heavy use.
With light use on soft surface material, it'll probably be fine. But the most valuable thing here is probably the case itself to organize the tools.
You're better off buying some higher quality bits that will last a long time so you won't have to replace them.
Okay, I'll bite. What's a good set to invest into? I've got a bunch of random cases (most of them have random, primarily smaller bits, broken) and want to get a single good quality set
Apr 02, 2025 07:10 PM
47 Posts
Joined Jan 2023
UniqueFog335Apr 02, 2025 07:10 PM
47 Posts
Quote from riffdex :
Okay, I'll bite. What's a good set to invest into? I've got a bunch of random cases (most of them have random, primarily smaller bits, broken) and want to get a single good quality set
wera makes great screwdriver bits, bosch makes fantastic masonry drill bits (not the ones that they sell in this set as they are made of cheaper quality), milwaukee's shockwave titanium is good for wood.
in general, Milwaukee's shockwave bits are pretty good for what you pay and should last you a long time unless you're just straightup misusing it
Apr 03, 2025 06:04 AM
26 Posts
Joined Oct 2018
mazine16Apr 03, 2025 06:04 AM
26 Posts
Just purchased. Will arrive between June 6th and June 16th. Lol
Apr 03, 2025 07:50 AM
4,097 Posts
Joined Mar 2015
CoolDealFinderApr 03, 2025 07:50 AM
4,097 Posts
Quote from riffdex :
What's their return policy at Costco? Never had any problem returning something to Amazon for the record
have you ever returned anything to amazon past 30 days?
Apr 04, 2025 01:22 AM
566 Posts
Joined Sep 2020
MagentaFruit531Apr 04, 2025 01:22 AM
566 Posts
Quote from jetracerLA :
Is this even cheaper at a Costco warehouse?
Just called them, same price at the warehouse.
You can click on warehouse tab on the app and click search warehouse inventory and type item # 4091000 to see if warehouse around you have it in stock for cheaper price. I checked metro atlanta and it is showing $24.97 at some local stores here which is clearance price at Costco.
Apr 10, 2025 01:24 AM
1,221 Posts
Joined Feb 2019
SelfPropelledFiveApr 10, 2025 01:24 AM
1,221 Posts
Quote from MagentaFruit531 :
You can click on warehouse tab on the app and click search warehouse inventory and type item # 4091000 to see if warehouse around you have it in stock for cheaper price. I checked metro atlanta and it is showing $24.97 at some local stores here which is clearance price at Costco.
didnt find any near me but thanks for the tip

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