Bosch GBH2-28L-RT 8.5 Amp 1-1/8 inch SDS-plus Bulldog Xtreme MAX rotary hammer featuring an ergonomic D-handle design and blue and black professional-grade housing.
Detailed view of the Bosch Bulldog rotary hammer highlighting technical features including the integral clutch, variable speed trigger, multi-function mode selector, and counter-balance vibration control.
Side profile view of the Bosch GBH2-28L-RT SDS-plus rotary hammer with a masonry drill bit and depth gauge installed for precise heavy-duty masonry drilling applications.
Illustration demonstrating the 360-degree adjustable auxiliary handle on the Bosch Bulldog rotary hammer providing maximum control and comfort for various drilling angles.
Perspective view of the Bosch GBH2-28L-RT Bulldog Xtreme MAX hammer drill showcasing its compact 1-1/8 inch SDS-plus chuck system and multi-function selector dial.
A technician in safety gear using the Bosch GBH2-28L-RT rotary hammer with a dust extraction attachment to drill into a concrete wall.
Construction professional using the Bosch 1-1/8 inch Bulldog rotary hammer for overhead concrete drilling while integrated with a HEPA-ready dust extractor system.
Professional using the Bosch Bulldog rotary hammer for downward floor drilling on a job site, highlighting the tool's effectiveness in heavy-duty commercial applications.
Close-up action shot of a worker using the Bosch GBH2-28L-RT rotary hammer to drill into a thick concrete wall in a industrial environment.
An electrician using the Bosch Bulldog rotary hammer to drill into a steel-reinforced concrete ceiling structure from a scaffold, demonstrating its power and reach.
Close-up view of the Bosch SDS-plus rotary hammer drilling into a white tiled wall, showing the precision of the hammer drill for masonry and remodeling work.
An operative using the Bosch GBH2-28L-RT and a connected dust extractor to drill a vertical hole into a concrete floor in a large commercial facility.
A worker using the Bosch Bulldog rotary hammer to drill into a brick and plaster wall, following a red laser layout line for accurate placement.
Infographic titled How We Do It explaining the Bosch reconditioning process, including expert remastering, hand-restoration to pristine condition, and the official stamp of approval.
Bosch Concrete Tool Accessories | Bosch WOC 2026 promotional video
Bosch GBH2-28L-RT 8.5 Amp 1-1/8 inch SDS-plus Bulldog Xtreme MAX rotary hammer featuring an ergonomic D-handle design and blue and black professional-grade housing.
Detailed view of the Bosch Bulldog rotary hammer highlighting technical features including the integral clutch, variable speed trigger, multi-function mode selector, and counter-balance vibration control.
Side profile view of the Bosch GBH2-28L-RT SDS-plus rotary hammer with a masonry drill bit and depth gauge installed for precise heavy-duty masonry drilling applications.
Illustration demonstrating the 360-degree adjustable auxiliary handle on the Bosch Bulldog rotary hammer providing maximum control and comfort for various drilling angles.
Perspective view of the Bosch GBH2-28L-RT Bulldog Xtreme MAX hammer drill showcasing its compact 1-1/8 inch SDS-plus chuck system and multi-function selector dial.
A technician in safety gear using the Bosch GBH2-28L-RT rotary hammer with a dust extraction attachment to drill into a concrete wall.
Construction professional using the Bosch 1-1/8 inch Bulldog rotary hammer for overhead concrete drilling while integrated with a HEPA-ready dust extractor system.
Professional using the Bosch Bulldog rotary hammer for downward floor drilling on a job site, highlighting the tool's effectiveness in heavy-duty commercial applications.
Close-up action shot of a worker using the Bosch GBH2-28L-RT rotary hammer to drill into a thick concrete wall in a industrial environment.
An electrician using the Bosch Bulldog rotary hammer to drill into a steel-reinforced concrete ceiling structure from a scaffold, demonstrating its power and reach.
Close-up view of the Bosch SDS-plus rotary hammer drilling into a white tiled wall, showing the precision of the hammer drill for masonry and remodeling work.
An operative using the Bosch GBH2-28L-RT and a connected dust extractor to drill a vertical hole into a concrete floor in a large commercial facility.
A worker using the Bosch Bulldog rotary hammer to drill into a brick and plaster wall, following a red laser layout line for accurate placement.
Infographic titled How We Do It explaining the Bosch reconditioning process, including expert remastering, hand-restoration to pristine condition, and the official stamp of approval.
Bosch Concrete Tool Accessories | Bosch WOC 2026 promotional video
BOSCH

Bosch GBH2-28L-RT 8.5 Amp 1-1/8 Inch SDS-Plus Bulldog Xtreme MAX Rotary Hammer Kit KickBack Vibration Control Reconditioned Heavy Duty Masonry Drill

In stock
SKU: GBH2-28L-RT
$179.00 USD

Description

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Legendary Bulldog Performance: The Ultimate Power and Safety for Masonry Professionals

The Bosch GBH2-28L-RT SDS-plus® Bulldog™ Xtreme Max is the powerhouse of the legendary Bulldog line, specifically engineered to tackle the most demanding drilling and chiseling tasks with ease. Driven by a robust 8.5 Amp motor, this rotary hammer delivers a formidable 2.4 Ft.-Lbs. of impact energy and up to 5,100 BPM, ensuring rapid progress through concrete and masonry. Designed for the hardworking professional, it features Bosch-exclusive KickBack Control—an integrated sensor that instantly stops tool rotation during bit bind-up situations to protect the user from sudden torque reactions. Whether you are a masonry pro or a general contractor, this tool provides the perfect balance of raw power and intelligent safety.

Comfort and versatility are at the core of the GBH2-28L-RT design. It features a counter-balanced Vibration Control system that significantly reduces hand-arm vibration, allowing for all-day use with less fatigue. The multi-function mode selector offers three distinct modes: drilling only, hammer drilling, and chiseling, providing the flexibility needed for a wide range of applications. With an ergonomic D-handle for superior control in overhead or downward positions, a Vario-Lock system for optimizing chisel angles, and a convenient HammerHook for quick storage on the job, this tool is built to maximize your efficiency on every site.

Note: This is a manufacturer-reconditioned tool, certified to look and perform like new.

Key Features

  • High-Performance 8.5-Amp Motor: Delivers 2.4 Ft.-Lbs. of impact energy for reliable, professional-grade drilling.
  • KickBack Control: Uses an integrated sensor to stop tool rotation during bit bind-up, increasing user protection.
  • Vibration Control: Counter-balanced mechanism improves user comfort during extended drilling or chiseling tasks.
  • Multi-Function Selector: Three operating modes—drilling only, hammer drilling, and chiseling—for maximum job site versatility.
  • Vario-Lock Positioning: Rotates and locks the chisel into the optimal working angle for precision work.
  • SDS-plus® Bit System: Provides tool-free bit changes with automatic bit locking and high-torque transfer.
  • D-Handle Design: Ergonomic grip ideal for both overhead and downward drilling applications.
  • Variable Speed Trigger: Offers accurate bit starting and controlled drilling for various materials.

What's Included

  • (1) GBH2-28L SDS-plus® Bulldog™ Xtreme Max 1-1/8 In. Rotary Hammer
  • (1) Auxiliary Handle
  • (1) Depth Gauge
  • (1) Carrying Case

Specifications

Amperage 8.5 Amps
Chuck Size / Drive System 1-1/8" SDS-plus®
Impact Energy 2.4 Ft.-Lbs.
No Load BPM 0 - 5,460
No Load RPM 0 - 1,230
Max. Capacity in Concrete 1-1/8"
Max. Hole Dia. (Core Bit) 2-5/8"
Voltage 120V
Tool Dimensions 17.4" L x 3.5" W x 6" H
Weight 6.9 lbs.
Variable Speed / Reverse Yes / Yes
Dust Extraction Compatible Yes (Works with GDE18V-26D, HDC100, HDC200)

Pro-Tip: To maximize the lifespan of your SDS-plus® bits and the hammer's chuck, always apply a small amount of grease to the bit shank before insertion. This reduces heat friction and prevents the metal-on-metal wear that can occur during high-BPM operation, ensuring smoother bit changes and consistent power transfer.