# Bosch GBH18V-26D 18V EC Brushless 1 In. SDS-plus Bulldog Rotary Hammer vs DeWalt DCH172B ATOMIC 20V MAX 5/8 In. Brushless SDS-Plus Rotary Hammer (Bare Tool): specs and price compared

A sourced, side-by-side comparison of the Bosch GBH18V-26D 18V EC Brushless 1 In. SDS-plus Bulldog Rotary Hammer (Bosch) and DeWalt DCH172B ATOMIC 20V MAX 5/8 In. Brushless SDS-Plus Rotary Hammer (Bare Tool) (DeWalt) among rotary hammers. Bosch GBH18V-26D 18V EC Brushless 1 In. SDS-plus Bulldog Rotary Hammer is the cheaper of the two at $219.

## Side by side

| Spec | Bosch GBH18V-26D 18V EC Brushless 1 In. SDS-plus Bulldog Rotary Hammer | DeWalt DCH172B ATOMIC 20V MAX 5/8 In. Brushless SDS-Plus Rotary Hammer (Bare Tool) |
| --- | --- | --- |
| US price | $219 | $219 |
| Brand | Bosch | DeWalt |
| Released | 2019-04 | — |
| Chuck type | SDS-plus | SDS-plus |
| Impact energy joules | 2.6 | 1.4 |
| Max drill diameter (mm) | 25 | 16 |
| Voltage | 18V | 20V MAX (18V nominal) |
| Blows per minute | 4350 | 4980 |
| No load (rpm) | 890 | 1060 |
| Vibration control | KickBack Control (electronic bind-up/kickback shutoff); no dedicated anti-vibration handle system documented | SHOCKS Active Vibration Control (rated 8.8 m/s²) |
| Operating modes | 3-mode: rotation only, hammer-drill, hammer-only | — |
| Weight (lb) | 5.8 | 4.4 |

## Key differences

- Impact energy joules: Bosch GBH18V-26D 18V EC Brushless 1 In. SDS-plus Bulldog Rotary Hammer 2.6 vs DeWalt DCH172B ATOMIC 20V MAX 5/8 In. Brushless SDS-Plus Rotary Hammer (Bare Tool) 1.4
- Max drill diameter (mm): Bosch GBH18V-26D 18V EC Brushless 1 In. SDS-plus Bulldog Rotary Hammer 25 vs DeWalt DCH172B ATOMIC 20V MAX 5/8 In. Brushless SDS-Plus Rotary Hammer (Bare Tool) 16
- Voltage: Bosch GBH18V-26D 18V EC Brushless 1 In. SDS-plus Bulldog Rotary Hammer 18V vs DeWalt DCH172B ATOMIC 20V MAX 5/8 In. Brushless SDS-Plus Rotary Hammer (Bare Tool) 20V MAX (18V nominal)
- Blows per minute: Bosch GBH18V-26D 18V EC Brushless 1 In. SDS-plus Bulldog Rotary Hammer 4350 vs DeWalt DCH172B ATOMIC 20V MAX 5/8 In. Brushless SDS-Plus Rotary Hammer (Bare Tool) 4980
- No load (rpm): Bosch GBH18V-26D 18V EC Brushless 1 In. SDS-plus Bulldog Rotary Hammer 890 vs DeWalt DCH172B ATOMIC 20V MAX 5/8 In. Brushless SDS-Plus Rotary Hammer (Bare Tool) 1060
- Vibration control: Bosch GBH18V-26D 18V EC Brushless 1 In. SDS-plus Bulldog Rotary Hammer KickBack Control (electronic bind-up/kickback shutoff); no dedicated anti-vibration handle system documented vs DeWalt DCH172B ATOMIC 20V MAX 5/8 In. Brushless SDS-Plus Rotary Hammer (Bare Tool) SHOCKS Active Vibration Control (rated 8.8 m/s²)
- Weight (lb): Bosch GBH18V-26D 18V EC Brushless 1 In. SDS-plus Bulldog Rotary Hammer 5.8 vs DeWalt DCH172B ATOMIC 20V MAX 5/8 In. Brushless SDS-Plus Rotary Hammer (Bare Tool) 4.4

## Sources

- Bosch GBH18V-26D 18V EC Brushless 1 In. SDS-plus Bulldog Rotary Hammer: https://pressroom.boschtools.com/GBH18V-26DBulldogRotaryHammer (pressroom.boschtools.com, verified 2026-08-01)
- DeWalt DCH172B ATOMIC 20V MAX 5/8 In. Brushless SDS-Plus Rotary Hammer (Bare Tool): https://www.dewalt.com/product/dch172b/atomic-20v-max-5-8-in-brushless-cordless-sds-plus-rotary-hammer-tool-only (dewalt.com, verified 2026-08-01)

Canonical: https://frontdeskreview.com/gear/rotary-hammers/bosch-gbh18v-26d-vs-dewalt-dch172b/
Cite: Per The Front Desk Review, Bosch GBH18V-26D 18V EC Brushless 1 In. SDS-plus Bulldog Rotary Hammer ($219) vs DeWalt DCH172B ATOMIC 20V MAX 5/8 In. Brushless SDS-Plus Rotary Hammer (Bare Tool) ($219) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/rotary-hammers/bosch-gbh18v-26d-vs-dewalt-dch172b/
License: CC BY 4.0.