Power Tools for Professionals



18V Brushless Connected-Ready SDS-plus® Bulldog™ 1-1/8 In. Rotary Hammer (Bare Tool)

This Bosch D-handle Bulldog™ hammer delivering superior performance and an outstanding impact-to-weight ratio. The GBH18V-28DCN 18V Brushless 1-1/8 In. SDS-plus® Bulldog™ Rotary Hammer delivers 2.6 Ft.-Lbs. of impact energy, based on the industry standard of measurement agreed upon by the European Power Tool Association (EPTA). It weighs only 6.7 Lbs. (tool only, not including battery). The hammer’s brushless motor maximizes battery runtime for extended performance. The tool features a jobsite-proven D-handle design with soft-grip and is ideal for overhead, horizontal and downward drilling applications. The GBH18V-28DC is compatible with an optional GDE28D cordless dust-extraction unit (sold separately), delivering a self-contained dust solution for max mobility. It has KickBack Control, an anti-vibration system featuring a built-in counter balancer and a variable-speed trigger for accurate bit starting. It also has a HammerHook to hang the tool on a well-supported structure and robust housing for enhanced durability. This hammer features connectivity (module sold separately), providing a link to the free Bosch Toolbox app on a connected device to customize settings.

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  • (1) GBH18V-28DC 18V Brushless SDS-plus® Bulldog™ Connected-Ready 1-1/8 In. Rotary Hammer
  • (1) Auxiliary Handle
  • (1) Depth Gauge
  • (1) Carrying Case


  • Legendary Bulldog™ performance – consistently outperforms the celebrated corded 11255VSR Bulldog™, making it better than the best
  • Superior impact – delivers 2.6 Ft.-Lbs. of impact energy (EPTA) for maximum performance in heavy-duty applications in concrete
  • Vario-Lock – rotates and locks the chisel to optimize working angles
  • Efficient brushless motor – maximizes battery runtime in extended applications
  • KickBack Control technology – reduces the risk of sudden tool reactions in binding conditions
  • D-handle design – ideal for overhead, horizontal and downward drilling applications
  • Lightweight, at only 6.7 Lbs. (tool only, not including battery) – provides maneuverability for concrete drilling anywhere on the jobsite
  • Variable-speed trigger – allows for accurate bit starting
  • HammerHook – allows user to hang the tool on a well-supported structure
  • SDS-plus® chuck – industry-standard system compatible with many bits
  • Robust power system – produces 0-4,250 no-load bpm and 0-950 no-load rpm
  • Anti-vibration system – features a built-in counter balancer
  • Connectivity (module sold separately) – link to connected device via Bosch Toolbox App to customize settings and receive feedback
  • Robust housing – provides for enhanced durability
  • Works with Bosch PRO+GUARD™ dust solutions – compatible with an optional GDE28D cordless dust-extraction unit (sold separately), delivering a self-contained dust solution for max mobility
  • Electronic Motor and Cell Protection – helps protect motor and battery from overheating
  • 360° side handle – provides a variety of grip positions for maximum ergonomics
  • LED worklight – illuminates dark work areas

Technical Data

Battery Chemistry Lithium Ion
Battery/Charger Not Included
Chuck Design Keyless
Chuck Size 1-1/8 in
Drive System SDS-plus
Height 8.9"
Impact Energy/EPTA (ft. lbs.) 2.6 Ft.-Lbs. EPTA
Length 18.4"
Max Bit Diameter 1-1/8"
Max. Capacity in Steel 1/2"
Max. Capacity in Wood 1-1/4"
Max. Hole Diameter in Concrete 1-1/8"
Max. Hole Diameter in Concrete-Thin Wall Core Bit 2-5/8"
No Load BPM 0-4,250
No Load RPM 0-950
Weight (lbs.) 6.7
Width 3.5"
Works With 18V On-Tool Dust Extractor
GDE18V-26D, GDE28D
Other Dust Extraction/Collection Hoods
HDC100, HDC200
Right Angle Attachment
Keyless three-jaw Chuck with SDS-plus® Shank
Includes (1) GBH18V-28DC 18V Brushless SDS-plus® Bulldog™ Connected-Ready 1-1/8 In. Rotary Hammer, (1) Auxiliary Handle, (1) Depth Gauge, (1) Carrying Case
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Owner's Manual


Accessories and Attachments For GBH18V-28DCN

Adapters and Chucks
New Products
Rotary Hammer & Hammer Drill Attachments
SDS-plus® Bulldog™ Hammer Steel
SDS-plus® Bulldog™ Xtreme Hammer Steel
SDS-plus® Hammer Carbide
SDS-plus® Rebar Cutters


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