Bosch Rotary Hammer Kit GBH18V-28CK28 1-1/8 Inch SDS-plus Bulldog Drill (2.6 Ft-Lbs Impact Dual 8.0Ah CORE18V Battery Charger Masonry Anchoring)
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Bosch GBH18V-28CK28 18V Brushless Bulldog™ 1-1/8" SDS-plus® Rotary Hammer Kit with (2) CORE18V 8.0Ah Batteries
The Bosch GBH18V-28CK28 18V brushless Bulldog™ 1-1/8-inch SDS-plus® rotary hammer kit bores concrete anchor holes, drills masonry cores, and executes heavy demolition chiseling with 2.6 ft-lbs of EPTA impact energy and 4,220 BPM. Powered by an industrial brushless motor matched with two high-capacity CORE18V® 8.0Ah high-power lithium-ion batteries, this cordless drilling system maintains consistent rotational torque up to 950 RPM through aggregate rock, solid reinforced concrete, and tough masonry blocks. Outfitted with sensor-based KickBack Control to stop sudden rotational bind-ups, an integrated Anti-Vibration System to mitigate joint fatigue, an interactive on-tool user interface display, and a 12-position Vario-Lock™ chisel collar, it equips commercial electricians, mechanical plumbers, and structural masonry crews with durable drilling and chipping productivity.
Best Used For:
- Structural Concrete Anchoring and Core Drilling: Boring heavy-duty 1/2-inch to 1-1/8-inch mechanical anchor holes and up to 3-inch thin-wall core bit passages through commercial concrete foundations.
- Overhead MEP Conduit and Pipe Hanger Installations: Drilling repetitive drop-in anchor holes in concrete ceilings and elevated slab decks with reduced vibration fatigue.
- Tile Scraping and Mortar Joint Chiseling: Locking flat chisels and scaling blades into 12 distinct positions using Vario-Lock™ for controlled surface demolition and masonry prep.
Key Performance & Safety Features
- 2.6 Ft.-Lbs. Hard-Hitting Impact Energy: Engineered to match corded hammer striking force for rapid penetration through hard aggregate and concrete.
- Sensor-Based KickBack Control: Integrated acceleration sensors automatically shut down motor power in a fraction of a second if the bit binds up against rebar.
- Dual High-Power CORE18V® 8.0Ah Batteries: Next-generation 21700 cell architecture delivers corded-class wattage output and advanced thermal heat management.
- Internal Anti-Vibration Counterbalance: Built-in structural dampeners actively absorb impact shock waves before they reach the operator's hands and arms.
- Interactive On-Tool User Interface: High-visibility digital screen provides real-time tool diagnostics, motor temperature feedback, and battery state-of-charge data.
- 12-Position Vario-Lock™ Collar: Allows operators to rotate and lock scaling and demolition chisels into the optimum working angle.
- AMPShare™ Multi-Brand Compatibility: Batteries and charger operate seamlessly across the global multi-brand alliance cordless tool platform.
What's Included
- (1) Bosch GBH18V-28C 18V Brushless Bulldog™ 1-1/8" SDS-plus® Rotary Hammer
- (2) Bosch GBA18V80 CORE18V® 18V 8.0Ah High Power Lithium-Ion Batteries
- (1) Bosch 18V Lithium-Ion Fast Battery Charger
- (1) 360-Degree Auxiliary Side Handle Assembly
- (1) Metal Depth Gauge Rod
- (1) Heavy-Duty Jobsite Storage Carrying Case
Technical Specifications
| Manufacturer Brand | Bosch Power Tools (Robert Bosch Tool Corporation) |
| Model Part Number | GBH18V-28CK28 |
| Tool Category Class | Cordless SDS-plus® Rotary Hammer Kit |
| Nominal Battery Voltage | 18 Volts DC (AMPShare™ Platform Compatible) |
| Chuck Drive Interface | SDS-plus® Tool-Free Quick-Change Chuck |
| Impact Energy (EPTA Rating) | 2.60 Ft.-Lbs. (3.53 Joules Impact Force) |
| No-Load Rotational Speed | 0 - 950 RPM (Variable Speed Reversible) |
| No-Load Blow Impact Rate | 0 - 4,220 BPM (Beats Per Minute) |
| Maximum Solid Concrete Capacity | 1.125 Inches (1-1/8 in. / 28.58 mm) |
| Maximum Core Bit Capacity | 3.000 Inches (Thin-Wall Concrete Core Bits) |
| Maximum Structural Steel Capacity | 0.500 Inches (1/2 in. Steel Drilling) |
| Maximum Timber Wood Capacity | 1.250 Inches (1-1/4 in. Wood Boring) |
| Safety Mechanism Systems | Electronic KickBack Control & Mechanical Clutch |
| Batteries Included in Kit | (2) GBA18V80 CORE18V® 8.0Ah High Power Batteries |
| Bare Tool Net Weight | 7.30 lbs (116.80 oz / 3.31 kg) |
| Tool Physical Dimensions | 14.00 in. L x 3.25 in. W x 8.90 in. H |
| Suitable for material type | Hard Aggregate Concrete, Brick, CMU Block, & Rebar |
Pro-Tip: When drilling holes for heavy structural anchors, allow the 2.6 ft-lbs electro-pneumatic hammer mechanism to do the work with moderate forward guidance; pressing excessively hard dampens the internal striker stroke and slows down drilling speed.
