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Bosch Bulldog 1/4-in x 4-in Alloy steel Masonry Drill Bit For SDS-plus drill

Name: Bosch Bulldog 1/4-in x 4-in Alloy steel Masonry Drill Bit For SDS-plus drill
Brand: Bosch
SKU: 1209179
Price: 5.98 USD
Availability: InStock
Rating: 4.2 (40 reviews)

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Carbide tipped for long life in tough applications. Centric tip ensures quick starts in concrete. Wear mark alerts user when tip wears beyond ANSI specification. Bit runs cooler thanks to improved flute design.

Optimized brazing and hardening process for long life
15% faster (compared to S4L)
Bosch-made carbide tip is tougher and more durable under heavy loads
Proprietary Bosch hardening process results in more holes per bit
Ideal for anchoring and through-hole applications in concrete
4-flute design for fast dust removal
Centric tip for optimal hole geometry

General
Series Name	Bulldog	Case Type	N/A (no case)
Type	Percussion/Rotary	Shank Type	SDS-plus
Material	Alloy steel	Tip Material	Carbide
Package Quantity	1

Dimensions
Bit Diameter (Inches)	1/4-in	Maximum Drilling Depth	2-in
Bit Length	4-in	Shank Size	SDS-plus

Features
Set/Individual	Individual

Compatibility
Brand/Model Compatibility	Fits most SDS-plus rotary hammers	For Use on Concrete	Yes
Compatible Tool	SDS-plus drill	For Use on Brick	Yes
For Use on Stone	Yes	For Use on Tile	Yes
For Use on Wood	Yes	For Use on Rebar	No

Warranty
Warranty	None

Certifications
CA Residents: Prop 65 Warning(s)	No

Miscellaneous
UNSPSC	27111500

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Review

4.2 out of 5

40 Reviews

77% Recommend this product

Ratings may include incentivized customer reviews.

40 Customer Reviews

Sort By

Hard to get out of packaging and didn't cut well

Would Not Recommend

BruceMarch 7, 2025
Verified Purchaser

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Nothing

Drill 2 holes worked great 👍

Not meFebruary 8, 2025
Verified Purchaser

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I recommend these

These did the job

SnoozSeptember 22, 2024
Verified Purchaser

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Xxxx

Would Not Recommend

Didn’t fit my drill

XxxxcSeptember 7, 2024
Verified Purchaser

Was this Review Helpful ?

very good

Would Recommend

very good

noneJuly 11, 2024
Verified Purchaser

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Excellent masonry bit

Would Recommend

Worked as advertised

BG1953June 16, 2024
Verified Purchaser

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Only used a few times, but it worked well

Would Recommend

Drived the holes just like it should

GmanFebruary 3, 2024
Verified Purchaser

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Did what it was supposed to do!

worked well

RicardoJanuary 10, 2024
Verified Purchaser

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COMPARE PRODUCTS

		Name	Current Item BoschBulldog 1/4-in x 4-in Alloy steel Masonry Drill Bit For SDS-plus drill
		Ratings	40
		Material	Alloy steel
		Bit Diameter (Inches)	1/4-in
		For Use on Brick
SKIL1/4-in x 5-in Alloy steel Masonry Drill Bit For Hammer drill	BoschBulldog Xtreme 1/4-in x 4-in Alloy steel Masonry Drill Bit For SDS-plus drill	BoschBlue Xtreme 1/4-in x 6-in Carbide Masonry Drill Bit For Hammer drill	BoschMultiConstruction 1/4-in x 6-in Alloy steel Masonry Drill Bit For Rotary drill/Impact driver	BoschBulldog tough 4-cutter 1/4-in x 6-in Alloy steel Masonry Drill Bit For SDS-plus drill	BoschBulldog 5/32-in x 6-in Alloy steel Masonry Drill Bit For SDS-plus drill	BoschBulldog 1/4-in x 6-in Alloy steel Masonry Drill Bit For SDS-plus drill	BoschBulldog 1/4-in x 8-in Alloy steel Masonry Drill Bit For SDS-plus drill	BoschBulldog 1/2-in x 12-in Alloy steel Masonry Drill Bit For SDS-plus drill
32	39	101	488	441	389	384	93	121
Alloy steel	Alloy steel	Carbide	Alloy steel	Alloy steel	Alloy steel	Alloy steel	Alloy steel	Alloy steel
1/4-in	1/4-in	1/4-in	1/4-in	1/4-in	5/32-in	1/4-in	1/4-in	1/2-in