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BOSCH HC5091 1-1/2 In. x 21 In. SDS-max Speed-X Carbide Rotary Hammer Bit for Concrete Drilling

4.7 4.7 out of 5 stars 1,571 ratings

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1-1/2" Diameter
21" Length

Purchase options and add-ons

Material Carbide
Cutting Diameter 1.5 Inches
Shank Type SDS-Max
Brand BOSCH
Tool Flute Type Spiral

About this item

  • UNIVERSAL: Fits all SDS-max hammers and Hilti hammers with TE-Y/TE-FY shanks
  • DURABLE: Solid carbide head is ideal for drilling masonry and concrete
  • RELIABLE: Stays sharper longer to drill more holes than competitors' bits
  • ACCURACY: Centric tip guides bit through hard and reinforced concrete
  • SPEED: Inclined side cutters have an aggressive edge for faster cutting
See more product details

Customer ratings by feature

Durability
4.5 4.5
Longevity
4.4 4.4
Value for money
4.3 4.3

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This Item
BOSCH HC5091 1-1/2 In. x 21 In. SDS-max Speed-X Carbide Rotary Hammer Bit for Concrete Drilling
BOSCH HC5091 1-1/2 In. x 21 In. SDS-max Speed-X Carbide Rotary Hammer Bit for Concrete Drilling
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BOSCH HC4091 1-1/2 In. x 21 In. Spline Speed-X Rotary Hammer Bit for Concrete Drilling,Grey
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Price-54% $87.34
List:$191.29
-9% $104.99
List:$114.97
$29.98$29.99$94.99$99.99
Delivery
Get it as soon as Monday, Apr 1
Get it Apr 3 - 4
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Customer Ratings
Durability
4.5
4.0
4.6
Value for money
4.3
4.3
4.4
Sold By
Amazon.com
Toolup
Patio Paradise inc
Tool Slate
Tool Slate
Amazon.com
material
Carbide
Blend, Blend, Blend, Blend, Blend
Steel
Carbide
Carbide, Alloy Steel
Carbide
shank type
SDS-Max
SDS Max
SDS-Plus
SDS-Plus
SDS-Max
Spline
tool flute type
Spiral
Straight
Straight
Spiral
Spiral
surface suggestion
Alloy Steel
Concrete
concrete, brick
Stone, Brick, Masonry
Concrete, Stone, , Masonry
Stone

From the brand


From the manufacturer

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BOSCH SPEEDX ROTARY HAMMER BITS

Engineered for speed and long life in concrete, Bosch SpeedX is the perfect bit for both precision anchoring and deep drilling applications.

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PROFESSIONAL PERFORMANCE

Bosch offers a full line of carbide bits, carbide cores, steel points and chisels for hammer drills, rotary hammers and demolition hammers.

UNRIVALED DESTRUCTIVE POWER

Extremely robust and aggressive tungsten carbide four-cutter tip with inclined side cutters for increased speed and power.

DRILLING ACCURACY

Active centering tip with wear marks increases accuracy for precision anchoring applications.

SDS-MAX SHANK

Designed for use with SDS-max compatible rotary hammers.

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Warranty & Support

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BOSCH

BOSCH HC5091 1-1/2 In. x 21 In. SDS-max Speed-X Carbide Rotary Hammer Bit for Concrete Drilling


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Product Description

Bosch carbide rotary hammer bits feature tips that stay sharper longer and deliver more holes within specification than competitive bits. Manufactured to ANSI specification B212.14. SDS-max® rotary hammer bits fit Bosch SDS-max® hammers and competitive SDS-max® drive hammers and Hilti® hammers using TE-Y and TE-FY shanks. Unrivaled power from solid carbide head with robust S-cutter design for added speed and life.

Customer reviews

4.7 out of 5 stars
4.7 out of 5
1,571 global ratings

Customers say

Customers like the value, performance, quality and speed of the drill bit. For example, they mention it's cheap to buy, makes fencing much more affordable and that it drills very fast. That said, opinions are mixed on size.

AI-generated from the text of customer reviews

103 customers mention90 positive13 negative

Customers like the quality of the drill bit. They mention it's an excellent bit for drilling holes, and works well for anchor holes. Some say that it'll make short work of the holes, while others say that they've drilled hundreds of post holes with it.

"...It seems like a quality bit, but I'm not likely to ever use it again." Read more

"...The holes was really clean and professional looking, but I was exhausted after just one...." Read more

"...It makes a nice clean entry hole and smooth shafted interior. Just as it comes out th rear you can get some chipping or blowout...." Read more

"Got the 2” x 23” but. Drills great but was two inches shorter than advertised (label on bit shows it’s 21” long)...." Read more

89 customers mention70 positive19 negative

Customers like the durability of the drill bits. They say that it holds up over time, shows no sign of wearing out, and is very solidly built. Customers also mention that the carbide shows almost no wear and that it's still going strong.

"...need to pilot bit through brick or concrete, these bits will last for a very long time." Read more

"...(more spindles less chance of bind) but it’s worked perfect, no binds or wrist breaks :)..." Read more

"Work great. Holds up over time. Good value to quality ratio. Will buy again if it wears out." Read more

"...recommend using this bit with a corded drill because it burns through batteries quickly. If you can drill a pilot hole, I would also recommend that." Read more

67 customers mention63 positive4 negative

Customers are satisfied with the performance of the drill bit. They mention that it works well, is very happy with its performance, and is pleased with the results. Some say that they had no problems with using the product and that it seems to be very solidly made.

"Making holes for posts in a granite mountain. This is working like a charm!" Read more

"...n’t the extreme version (more spindles less chance of bind) but it’s worked perfect, no binds or wrist breaks :)..." Read more

"Work great. Holds up over time. Good value to quality ratio. Will buy again if it wears out." Read more

"This was purchased for putting in T-posts in rocky soil and it works very well. So it did the job and it has not worn to any noticeable extent." Read more

47 customers mention40 positive7 negative

Customers like the value of the drill bit. They say it has a good value to quality ratio and makes fencing more affordable. They also mention that it's cheap to buy and holds up over time.

"...but it’s worked perfect, no binds or wrist breaks :) Good value, great sharp tip easy to use to get you going straight." Read more

"Work great. Holds up over time. Good value to quality ratio. Will buy again if it wears out." Read more

"...Bosch seem to offer a nice balance between good quality and reasonalbe pricing...." Read more

"Nice quality bit for the price...." Read more

23 customers mention20 positive3 negative

Customers like the speed of the drill bit. For example, they mention it's very fast, makes quick work of hard concrete, and drills a lot easier than comparable standard hammer bits. It's also fast cutting and produces a flat bottom hole. Some say that it takes some effort to handle but does a great job clearing.

"...and no pressure was needed to drill...." Read more

"...I find that their bits drill faster and seem to last longer than the comparable Milwaukee and DeWalt bits and units...." Read more

"...It is good size bit and takes some effort to handle but does a great job clearing the hole as it drills and does not seem to bind much for it size...." Read more

"...Still looks great and is preforming beautifully. Very pleased. I just ordered the 31 inch version to drill post holes." Read more

7 customers mention7 positive0 negative

Customers like the dust cleaning of the drill bit. They say it pulls the dust up out of the hole as it drills, and does a nice job of making a clean, round hole. Some mention that the four-cutter head does s a great job of clearing the hole.

"...to keep the hole plumb and the four-cutter head does a nice job of making a clean, round hole for your purpose." Read more

"...It really pulls the dust up out of the hole as it drills (none of the up and down motion to clear out the dust), and no pressure was needed to drill..." Read more

"...minutes flat and does a great job of bringing up the dust and keeping the hole clean. Goes easily through the pressure treated wood above that...." Read more

"...is good size bit and takes some effort to handle but does a great job clearing the hole as it drills and does not seem to bind much for it size...." Read more

6 customers mention6 positive0 negative

Customers find the drill bit easy to use and effective. They mention it's easier than a core drill bit, and does the job with ease. Customers also appreciate the sharp tip and mention it makes their life very easy.

"...Good value, great sharp tip easy to use to get you going straight." Read more

"It was easy and fun to drill 700 holes to make anchor for shelving." Read more

"...Great product. I used it for posts for my pool fence. Make my life very easy." Read more

"Stood up to anything asked of it. Truly did the job with ease." Read more

23 customers mention12 positive11 negative

Customers are mixed about the size of the drill bit. Some mention it was the right size and did the job they need it to, while others say they were sent the wrong size and it was very large and heavy.

"What else is there to say? It's a yard long and can drill 31" deep...." Read more

"This is a 2” SDS Max bit and it is very large and heavy...." Read more

"Use this bad Larry for installing a Tesla charger. Fit my Milwaukee SDS-max perfectly...." Read more

"Got the 2” x 23” but. Drills great but was two inches shorter than advertised (label on bit shows it’s 21” long)...." Read more

Heavy Solid Bit
5 Stars
Heavy Solid Bit
I did not have SDS max Drill so I put a 19mm socket with (5) 1/8" keys in grooves with sand to fill small inner areas then put chalk on end to hold sand in. Used my 1/2" Battery DeWalt impact on socket. I did pre drill the two wide cinder block area with my SDS 1" bit. then used this SDS max 2" 23" long worked well for me did not take much time to drill through.
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Top reviews from the United States

Reviewed in the United States on March 16, 2024
Size: 1-1/4" DiameterStyle: 36" LengthVerified Purchase
Reviewed in the United States on March 13, 2024
Size: 1/2" DiameterStyle: 21" LengthVerified Purchase
Reviewed in the United States on December 4, 2023
Size: 2" DiameterStyle: 23" LengthVerified Purchase
Reviewed in the United States on September 7, 2023
Size: 1-1/4" DiameterStyle: 36" LengthVerified Purchase
One person found this helpful
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Reviewed in the United States on September 22, 2023
Size: 1-1/4" DiameterStyle: 36" LengthVerified Purchase
Reviewed in the United States on April 23, 2023
Size: 1-1/2" DiameterStyle: 21" LengthVerified Purchase
One person found this helpful
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Reviewed in the United States on January 24, 2024
Size: 1-3/8" DiameterStyle: 36" LengthVerified Purchase
Reviewed in the United States on December 5, 2012
Size: 3/4" DiameterStyle: 21" LengthVerified Purchase
7 people found this helpful
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Top reviews from other countries

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Jeff Rowell
5.0 out of 5 stars Outstanding Performance and Durability
Reviewed in Canada on November 4, 2023
Size: 1/2" DiameterStyle: 21" LengthVerified Purchase
Samuel
5.0 out of 5 stars Buena opcion
Reviewed in Mexico on October 20, 2023
Size: 1-1/4" DiameterStyle: 21" LengthVerified Purchase
Nighthawk
5.0 out of 5 stars Kicks butt and takes names
Reviewed in Canada on June 27, 2023
Size: 1-1/2" DiameterStyle: 21" LengthVerified Purchase
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Nighthawk
5.0 out of 5 stars Kicks butt and takes names
Reviewed in Canada on June 27, 2023
Works great in Granite up to full depth. I’ve been cooling with water to make a flowing mud consistency with the rock powder. 4 feet of holes cut so far - still working well no signs of wear
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Piero Tomassini
5.0 out of 5 stars Bosch makes very good products
Reviewed in Canada on October 28, 2022
Size: 2" DiameterStyle: 23" LengthVerified Purchase
Amazon Customer
5.0 out of 5 stars excellent
Reviewed in Canada on August 6, 2022
Size: 5/8" DiameterStyle: 13" LengthVerified Purchase