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Description
Bosch Hammer Drill Bits HCBG03B25T 3/16 Inch x 4 Inch 25 Pack BlueGranite Turbo Carbide Masonry Drilling Set Hex Shank Impact Rated Brick FasteningAccelerate Masonry Anchoring and Penetration with 5x Extended Service Life The Bosch HCBG03B25T BlueGranite Turbo Carbide Hammer Drill Bit Set is a 25 piece commercial bulk pack of 3 16 inch by 4 inch impact rated masonry accessories engineered for continuous drilling applications. Designed with an upgraded hex shank configuration, these precision bits integrate natively into high torque hammer drills and standard impact drivers to handle up to twice
Accelerate Masonry Anchoring and Penetration with 5x Extended Service Life
The Bosch HCBG03B25T BlueGranite Turbo™ Carbide Hammer Drill Bit Set is a 25-piece commercial bulk pack of 3/16-inch by 4-inch impact-rated masonry accessories engineered for continuous drilling applications. Designed with an upgraded hex shank configuration, these precision bits integrate natively into high-torque hammer drills and standard impact drivers to handle up to twice the boring speed of conventional masonry components. Each structural bit features an innovative four-grind head matrix that introduces additional cutting angles alongside a multi-grind centering tip, delivering precise, walk-free hole starts across concrete, stone, brick, and block substrates.
Best Used For:
- Commercial Concrete Anchoring: Boring precise pilot fields into poured concrete pads and structural foundations to receive heavy masonry anchors.
- Brick and Cinder Block Penetration: Drilling clean, non-binding expansion pathways through structural brick walls, decorative stonework, and hollow cinder blocks.
- High-Torque Remodeling Operations: Executing high-speed serial penetrations on residential or industrial job sites utilizing high-torque corded or cordless impact tools.
Key Performance & Safety Features
- Engineered Turbo Carbide Compound: Formulated to supply up to five times the running operational lifetime and wear resistance of standard masonry bits.
- Advanced Four-Grind Head Geometry: Provides secondary cutting paths to optimize dust extraction, lowering thermal buildup and increasing cutting velocity.
- Multi-Grind Precision Centering Tip: Implements a razor-sharp mechanical pivot point to prevent bit wandering, ensuring clean tolerances on glossy masonry surfaces.
- PowerGrip Hex Shank Framework: Eliminates chuck slippage inside high-stress jaws, transferring maximum rotating force directly from the drill spindle to the bit tip.
- Impact-Rated Core Tempering: Specifically heat-treated to safely withstand the violent, fast rotational kinetic impacts delivered by high-performance professional drivers.
What's Included
- (25) HCBG03B25T 3/16" x 4" BlueGranite Turbo™ Carbide Hammer Drill Bits
- (1) Heavy-Duty Industrial Clear Storage Case Compartment Tube
Technical Specifications
| Brand Manufacturer: | Bosch |
| Model Number (SKU): | HCBG03B25T |
| Product Classification Type: | Hammer Drill / Impact Driver Bits |
| Bit Core Sizing Diameter: | 3/16 in |
| Total Structural Length: | 4.0 in |
| Set Package Piece Count: | 25 Pieces |
| Tip Structural Matrix: | BlueGranite Turbo™ Tungsten Carbide |
| Head Geometry Profile: | Four-Grind with Centering Tip |
| Shank Interface Design: | PowerGrip Hex Shank (Impact Rated) |
| Performance Upgrades: | 5x Lifetime / 2x Drilling Speed Rating |
| Total Shipping Weight: | 0.75 lbs |
PRO-TIP: When drilling deep anchor pathways into dense stone or poured concrete, apply smooth, firm down-pressure and pull the spinning bit back out slightly every 1/2 inch to clear packed structural dust from the flutes. This prevents thermal compound lock and maximizes the cutting speed of your multi-grind carbide tip.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 8 reviews
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Product Reviews
★★★★★ 5
Was skeptical but it worked out of the box
Style Name: MacBook Air 13" (M4), Configuration: 3 years, Style Name: MacBook Air 13" (M4), Configuration: 3 years
Was skeptical at first but decided to pull the plug and get the m4 laptop with 3 years of apple care and it works. Haven't even opened an email or anything, laptop was still fresh out of the box. When I remembered I bought apple care and decided to check. Applied instantly as far as I know once I linked my apple account on the first boot up with internet! Good stuff
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Reviewed in the United States on February 4, 2026
★★★★★ 1
DO NOT PURCHASE WITH YOUR MACBOOK OR OTHER APPLE DEVICES
Style Name: MacBook Air 13" (M4), Configuration: 3 years, Style Name: MacBook Air 13" (M4), Configuration: 3 years
I bought this along with my MacBook. And here is why you SHOULDN'T:
1. They NEVER sent me an AppleCare+ Agreement. You will only be able to download a General Terms & Conditions file.
2. I bought: AppleCare+ for 13-inch MacBook Air (M4) (3 years) and in the General Terms & Conditions that I downloaded, looking for my AppleCare+ Agreement #, it NEVER mentioned Macbook Air as a covered device. It was meant for other smaller devices, which is why it's cheaper.
3. Like I mentioned, since I never received an agreement, I never got an agreement #.
4. Since this AppleCare wasn't actually meant for a MacBook, it didn't connect automatically to my computer. So when I went to talk to Apple and Amazon, without an Agreement # you can do ANYTHING.
If you purchase it, read through your General Terms and Conditions and find an excuse to ask for a FULL REFUND. Since this didn't cover my computer, I was thankfully able to get one, but it was a pain trying to talk to customer support and apple.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 27, 2025
★★★★★ 5
It worked! Apple Care was added to my device when I received it!
Style Name: MacBook Pro 14" (M4 Pro/M4 Max), Configuration: 3 years
I purchased an MacBook and AppleCare+ at the same time. A day/two after the purchase I received an email from Amazon that the AppleCare+ was in software and go to digital download. When I downloaded it was just the agreement. Then I started reading all the negative reviews on nightmare experience with Amazon and AppleCare+ not being added. I was very nervous and mentally prepare for the nightmare that lie ahead which having to call Amazon multiple times and then having to call Apple multiple times. To my surprise, right after Amazon delivered the MacBook (I got notification your item was delivered) I got another email from Amazon that AppleCare+ was added the laptop with agreement number and serial number of the laptop I received. I checked Apple's coverage site and sure enough Apple site showed AppleCare+ coverage tied the MacBook. I didn't even open the box or turn it on and see the AppleCare+ coverage. Hopefully this gives some insight to future buyers of AppleCare+ from Amazon!!!
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Reviewed in the United States on November 25, 2024
★★★★★ 1
DO NOT PURCHASE APPLECARE+ THROUGH AMAZON (Please read before making a decision)
Style Name: MacBook Air 13" (M4), Configuration: 3 years
I rarely write reviews like this, but DO NOT PURCHASE APPLECARE+ THROUGH AMAZON.
Just over a month ago, I purchased an Apple MacBook Air (m4) with AppleCare+. The AppleCare+ wasn't populating on the laptop, so after calls with Apple Support and Apple Agreement Administration, they found that AMAZON sent them the approved agreement with the device serial number then abruptly canceled it the following day. This happened over a month ago, and I was not notified nor have I received a refund.
I would not have known it was canceled if not for Apple Support and Apple Agreement Administration.
The only recourse is to receive a refund from Amazon--which is NOT automatic, I am fighting for this--and purchase AppleCare+ directly through Apple. Had all this taken place after the 60-days purchasing the MacBook Air (I'm currently one week short of this deadline), then I would be SOL on being able to cover my device.
PURCHASE AT YOUR OWN DISCRETION/RISK AND CHECK THAT APPLECARE+ IS APPROVED AND ACTIVE ON YOUR DEVICE. Otherwise, play it safe and activate directly through Apple.
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Reviewed in the United States on December 28, 2025
★★★★★ 5
Worked fine for me 🙌🏽
Style Name: MacBook Air 13" (M4), Configuration: 3 years
I read a lot of comments that said there was an issue with their purchase of AppleCare+, I did not have any of those experiences. AppleCare+ was on the laptop (MacBook Air, 13-inch 2025) automatically. I received an email with my confirmation of AppleCare+ coverage, along with my agreement number, product serial number and expiration date. There was nothing I needed to do on my end, because as I said it had already been added to my computer and attached to my iCloud account. — I hate that there are so many bad experiences and hope everything works out for anyone experiencing a nightmare but I can only recommend based on my experience, 10/10.
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Reviewed in the United States on August 4, 2025