A studio product shot of the Bosch 7/8-inch x 12-inch BlueGranite Turbo carbide hammer drill bit, featuring signature blue flutes and a silver impact-rated hex shank.
A side-view close-up of the upper portion of the BlueGranite Turbo drill bit, showing the sharpened carbide tip and the deep-cut milled U-flute design.
A close-up, top-down view of the bit head, highlighting the upgraded four-grind carbide centering tip for faster cutting and precise starts.
An informational graphic titled Best For, featuring labeled photos of masonry, brick, block, and concrete as the ideal primary material applications for this bit.
A studio product shot of the Bosch 7/8-inch x 12-inch BlueGranite Turbo carbide hammer drill bit, featuring signature blue flutes and a silver impact-rated hex shank.
An action shot showing the Bosch hammer drill bit as it bores into a concrete surface, demonstrating effective dust removal from the hole during use.
A worker in a plaid shirt uses a cordless hammer drill with the BlueGranite bit to drill into a stone tile backsplash in a kitchen.
A worker wearing a yellow hard hat and safety glasses uses a hammer drill to drill into a white cinder block wall in an industrial setting.
The Bosch 3/8-inch x 10-inch BlueGranite Turbo bit resting on a granite countertop next to a stack of tiles and a concrete block.
A promotional action shot showing a worker suspended by a rope harness while using a hammer drill and BlueGranite bit to drill into a kitchen backsplash.
A studio product shot of the Bosch 7/8-inch x 12-inch BlueGranite Turbo carbide hammer drill bit, featuring signature blue flutes and a silver impact-rated hex shank.
A side-view close-up of the upper portion of the BlueGranite Turbo drill bit, showing the sharpened carbide tip and the deep-cut milled U-flute design.
A close-up, top-down view of the bit head, highlighting the upgraded four-grind carbide centering tip for faster cutting and precise starts.
An informational graphic titled Best For, featuring labeled photos of masonry, brick, block, and concrete as the ideal primary material applications for this bit.
A studio product shot of the Bosch 7/8-inch x 12-inch BlueGranite Turbo carbide hammer drill bit, featuring signature blue flutes and a silver impact-rated hex shank.
An action shot showing the Bosch hammer drill bit as it bores into a concrete surface, demonstrating effective dust removal from the hole during use.
A worker in a plaid shirt uses a cordless hammer drill with the BlueGranite bit to drill into a stone tile backsplash in a kitchen.
A worker wearing a yellow hard hat and safety glasses uses a hammer drill to drill into a white cinder block wall in an industrial setting.
The Bosch 3/8-inch x 10-inch BlueGranite Turbo bit resting on a granite countertop next to a stack of tiles and a concrete block.
A promotional action shot showing a worker suspended by a rope harness while using a hammer drill and BlueGranite bit to drill into a kitchen backsplash.
BOSCH

Bosch Hammer Drill Bit HCBG25T 7/8 Inch Carbide Masonry Cutter (PowerGrip Hex Shank 12 Length High Speed Concrete Brick Impact Percussion Drilling)

In stock
SKU: HCBG25T
$23.29 USD

Description

Bosch Promtional Logo Logout

Industrial PowerGrip Hex Shank Carbide Bit for High-Speed Structural Concrete and Brick Percussion Drilling

The Bosch HCBG25T 7/8-Inch x 12-Inch BlueGranite Turbo Carbide Hammer Drill Bit delivers professional-grade mechanical penetration rates when anchoring fasteners into dense aged concrete, structural brick, and solid masonry blocks. Engineered with an advanced four-grind cutting head geometry, this percussion tool adds extra shear angles to achieve twice the drilling speed of standard masonry bits under heavy impact loads. The multi-grind centering tip anchors the entry coordinate immediately to eliminate bit walking, while the proprietary PowerGrip hex shank system locks securely into standard impact drivers or hammer drill chucks to transmit maximum operating torque without rotational slippage. Milled deep-cut U-flutes accelerate waste evacuation along the 10-inch flute path, preventing packed debris friction and thermal degradation during deep-hole structural anchoring cycles.

Best Used For:

  • Structural Anchor Hole Layouts: Drilling precise 7/8-inch anchor points in hardened aged concrete foundations to receive heavy mechanical drop-in fasteners or heavy-duty anchors.
  • Commercial Brick Wall Openings: Boring clean, high-speed routing holes through hard-fired exterior brick masonry for electrical conduit, utility line piping, and mechanical runs.
  • High-Impact Structural Block Fastening: Executing fast, repetitive percussion deep-hole runs in lightweight aggregate concrete blocks, masonry stone, and structural mortar layers.

Key Performance & Safety Features

  • Four-Grind Head Architecture: Advanced tip delivers four distinct cutting faces to maximize concrete fracturing speed and extend industrial service lifetimes up to 5X.
  • PowerGrip Hex Shank: Angled steel hex shank interface provides an aggressive hold inside the drill jaw assembly, completely eliminating chuck spinning during peak resistance torque loads.
  • Multi-Grind Centering Point: Micro-balanced sharp starter apex bites instantly into smooth brick or stone surfaces to safeguard absolute drilling coordinates.
  • Deep-Cut Dust U-Flutes: Open milled helix geometry accelerates material waste extraction out of deep blind holes, preventing thermal binding and bit stalling.
  • Bosch Proprietary Carbide: Premium carbide blend resists extreme stress cracking and tip shattering under continuous high-impact pounding from percussion tools.

What's Included

  • (1) 7/8 In. x 12 In. BlueGranite Turbo™ Carbide Hammer Drill Bit

Technical Specifications

Specification Value
Brand Bosch
Model Number HCBG25T
Drill Bit Size 0.875 in (7/8")
Overall Length 12.0 in
Usable Flute Length 10.0 in
Maximum Drilling Depth 10.0 in
Shank Type PowerGrip Hex
Shank Diameter 0.375 in (3/8")
Shank Hex Size 0.25 in (1/4")
Bit Material Carbide Tipped
Percussion Rated Yes
Number of Cutter Heads 2

Pro-Tip: To optimize debris removal and prevent hole sidewall packing during deep 10-inch percussion drill runs, implement a regular pull-back clearing motion. Retracting the bit slightly every few inches allows the fast-spinning deep-cut U-flutes to eject structural dust loads quickly, protecting the carbide tip from premature thermal degradation.