SDS-plus® Hammers

GBH18V-21N Professional

SDS-plus® Hammers

18V Brushless SDS-plus® Bulldog™ 3/4 In. Rotary Hammer (Bare Tool)

  • Powerful, compact cordless rotary hammer – features drilling performance plus chiseling in a lighter tool
  • Superior impact – delivers 1.5 Ft.-Lbs. of impact energy (EPTA) for maximum performance in drilling and chipping
  • Lightweight, at only 5.3 Lbs. (tool only, not including battery) – provides maneuverability for concrete drilling anywhere
  • Efficient brushless motor – maximizes battery runtime in extended applications
  • Battery requirement – compatible with Bosch 18V Li-ion batteries, but for optimal results, it requires a Bosch 18V 4.0 Ah battery or higher
  • Robust power system – produces 0-5,100 no-load bpm and 0-1,800 no-load rpm
  • Multi-function selector – three modes of operation: rotary hammer, rotation only and hammer only
  • Works with Bosch PRO+GUARD™ dust solutions – an end-to-end dust-collection system that helps users move toward OSHA Silica dust compliance
  • Ergonomic design – provides great user comfort, with a soft-grip handle
  • Electronic Motor and Cell Protection – helps protect motor and battery from overheating
  • SDS-plus® chuck – industry-standard system compatible with many bits
  • AMPShare™ System – designed to be multi-brand compatible across many cordless products to make managing your work day easier
  • AMPShare™ System compatibility – 18V batteries and chargers are compatible with Bosch 18V power tools and a growing list of cordless products from AMPShare™ brands
  • Bosch 18V cordless power tools are covered by a five year limited warranty – for details, visit https://rb-pt.io/PowerToolWarranty or call 1-877-BOSCH99

GBH18V-21N Professional

GBH18V-21N Professional

Your Selection

cordless-rotary-hammer-18v-gbh18v-21n-bosch-dyn

Order number: 0611911116

Technical data

The most important data

Battery Chemistry Lithium Ion
Battery/Charger Not Included
Chuck Design Keyless
Chuck Size 3/4 in
Drive System SDS-plus
Height in 8.7 "
Impact Energy/EPTA (ft. lbs.) 1.5 Ft.-Lbs. EPTA
Length in 12.8 "
Max Bit Diameter 3/4"
Max. Capacity in Concrete 3/4"
Max. Capacity in Steel 1/2"
Max. Capacity in Wood 1-1/4"
Max. Hole Diameter in Concrete 3/4"
Max. Hole Diameter in Concrete-Thin Wall Core Bit 2-1/2"
No Load BPM 0-5,100
No Load RPM 0-1,800
Reverse Yes
Variable Speed Yes
Weight 5.3 lb
Width in 3.5 "
Works With Dust Extraction/Collection Hoods, HDC100, HDC200, Keyless three-jaw Chuck with SDS-plus® Shank, HA3JAW
Includes (1) GBH18V-21 18V Brushless SDS-plus® Bulldog™ 3/4 In. Rotary Hammer
(1) Auxiliary Handle
(1) Depth Gauge

GBH18V-21N Professional: Further information

Product Highlights

The Bosch GBH18V-21 18V Brushless 3/4-Inch SDS-plus® Bulldog™ Rotary Hammer delivers exceptional performance for anchoring in concrete, drilling in masonry, core cutting and chiseling. With 1.5 Ft.-Lbs. of impact energy and a no-load bpm rating of 0-5,100, this hammer work as hard as the user. It provides three modes – rotary hammer, rotation only and hammer only. The brushless motor and low weight of 5.3 Lbs. (tool only, not including battery) maximize runtime for extended applications and provide an outstanding impact-to-weight ratio. The powerful GBH18V-21 is compatible with Bosch 18V Li-ion batteries, but for optimal results, it requires a Bosch 18V 4.0 Ah battery or higher. This hammer works with Bosch PRO+GUARD™ dust solutions – an end-to-end dust-collection system that helps users move toward OSHA Silica dust compliance. It has an ergonomic design and soft-grip handle. It has Electronic Motor and Cell Protection to protect the tool and battery from overload.