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 Rotary Hammer Kit GBH2-28L-RT 1.125 Inch SDS-Plus Drill 8.5 Amp 2.4 Foot-Pounds Impact Energy Concrete Masonry Drilling Chiseling Reconditioned

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

Description

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Professional 8.5 Amp 1-1/8 Inch SDS-Plus Rotary Hammer and Masonry Demolition Kit

The Bosch GBH2-28L-RT is an industrial-grade 8.5 Amp 1-1/8 inch SDS-Plus rotary hammer kit engineered to execute high-efficiency anchor setting, deep concrete core drilling, and heavy-duty chiseling across rigid structural masonry substrates. Driven by a high-output 120V motor delivering 2.4 foot-pounds of impact energy and up to 5,460 blows per minute, this professional-grade tool features an integrated KickBack Control sensor that automatically terminates power during sudden bit bind-ups to safeguard operators from intense rotational torque reactions. Outfitted with an internal counter-balanced Vibration Control mechanism to damp hand-arm harmonic oscillation, it ensures clean, all-day utility for commercial contractors, mechanical installers, and structural framers working in overhead or downward positions.

Best Used For:

  • Structural Concrete Anchoring: Driving 1-1/8 inch diameter holes into reinforced concrete foundations to anchor industrial structural columns or structural seismic brackets.
  • Masonry Renovation Chiseling: Removing thick ceramic thinset, leveling high spots on mortar beds, and scaling concrete block walls via the dedicated chiseling mode.
  • Utility Wall Penetration: Powering large 2-5/8 inch core bits through tough exterior stone or concrete brick structures to route commercial plumbing and electrical conduits.

Key Performance & Safety Features

  • Integrated KickBack Control: Built-in electronic sensor immediately halts power input during bit lockups to shield users from dangerous wrenching forces.
  • Counter-Balanced Vibration System: Internal engineering dampens physical impact harmonics to reduce operator hand-arm fatigue during prolonged operation.
  • Three Mode Function Selector: Rotary switch permits smooth mechanical shifting between drilling-only, hammer-drilling, and demolition-chiseling configurations.
  • Vario-Lock Chisel Positioning: Adjusts and permanently locks chisels into multi-angle orientations for optimal ergonomic alignment during scraping tasks.
  • Tool-Free SDS-Plus Chuck: High-torque transfer sleeve enables instant, tool-free bit changes with automatic mechanical locking retention.
  • Heavy Duty D-Handle Housing: Balanced overhead ergonomics provide secure manual grip tension during tough vertical down and overhead installations.

What's Included

  • (1) Bosch GBH2-28L SDS-plus® Bulldog™ Xtreme Max 1-1/8 In. Rotary Hammer
  • (1) Multi-Position Auxiliary Handle
  • (1) Heavy-Duty Depth Gauge Guide
  • (1) Hard Protective Carrying Case

Technical Specifications

Brand Name: Bosch
Model Number: GBH2-28L-RT
Power Supply Rating: 120V AC Standard Electrical Line
Amperage Draw Capacity: 8.5 A
Chuck Drive Configuration: 1-1/8 in. SDS-Plus Drive System
Impact Force Metric: 2.4 ft.-lbs.
No Load Frequency Rating: 0 - 5,460 BPM
No Load Angular Speed: 0 - 1,230 RPM
Max Capacity in Concrete: 1-1/8 in. (1.125") Max Hole Diameter
Max Core Bit Hole Diameter: 2-5/8 in. (2.625") Core Bit Capacity
Variable Speed & Reverse: Yes / Yes (Fully Trigger Controlled)
Tool Net Structural Weight: 6.9 lbs.
Overall Extent Dimensions: 17.4" Length x 3.5" Width x 6.0" Height

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

Pro-Tip: When installing concrete drop-in anchors, always run the tool in hammer-drilling mode down to your set depth, then keep the trigger pulled slightly while drawing the spinning bit outward. This draws fine masonry debris out of the pocket chamber, preventing obstruction so the anchor setting tool can achieve a flush structural fitment.