Toolhome.org participates in affiliate programs, including Amazon Associates. We may earn commissions from qualifying purchases, but our reviews remain honest and unbiased. Learn more ›
BOSCH GBH18V-21N 18V Brushless SDS-plus® Bulldog™ 3/4 In. Rotary Hammer (Bare Tool)
69 ratings
Highlights
- 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
Description
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.
Photos
Product specs
| Specification | Details |
|---|---|
| Brand | BOSCH |
| Power Source | Battery Powered |
| Maximum Rotational Speed | 1800 RPM |
| Voltage | 18 Volts |
| Amperage | 4 Amps |
| Maximum Chuck Size | 0.75 Inches |
| Color | Black |
| Included Components | -- Other -- |
| Special Feature | Compact, Lightweight |
| Product Dimensions | 12.8"L x 3.5"W x 8.7"H |
| Material | Blend, Metal |
| Maximum Torque | 1.5 Foot Pounds |
| Speed | 1100 RPM |
| Item Weight | 5.3 pounds |
| Maximum Power | 850 Watts |
| Item Torque | 1.5 Foot Pounds |
| Drill Type | Hammer Drill |
| Battery Capacity | 4 Amp Hours |
| UPC | 000346649413 |
| Drilling Capacity Wood | 1.25 Inches |
| Manufacturer | Robert Bosch Tool Corporation |
| Part Number | GBH18V-21N |
| Item model number | GBH18V-21N |
| Size | 12.8" in |
| Style | Industrial |
| Finish | Brushed |
| Pattern | Solid |
| Shape | Rectangular |
| Item Package Quantity | 1 |
| Special Features | Compact, Lightweight |
| Batteries Included? | No |
| Batteries Required? | No |
| Battery Cell Type | Lithium Ion |
| Warranty Description | 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 |
| ASIN | B08H3ZWNGK |
| Date First Available | September 23, 2020 |
Related
Tool Home is customer-supported. When you buy products through our site, we may earn an affiliate commission on featured products.
© 2025 Toolhome.org - All rights reserved.