DEWALT 20V MAX SDS Rotary Hammer Drill DCH273B Bare Tool — 1" Capacity, Brushless, SHOCKS Vibration Control

The DEWALT 20V MAX SDS Rotary Hammer (DCH273B) is a cordless, brushless 1" rotary hammer delivering 2.1 joules of impact energy with three selectable modes for drilling, hammer drilling, and chiseling.

This compact, lightweight rotary hammer pairs a brushless motor with a German-engineered mechanism to balance power, runtime and durability on concrete and masonry jobs. Designed for trades who need mobility and vibration control on the jobsite, the DCH273B is a bare tool (battery and charger sold separately) built into DEWALT’s PERFORM & PROTECT family and equipped with the SHOCKS Active Vibration Control System for reduced handle vibration during extended use.

How does this DEWALT rotary hammer perform on concrete and masonry?

The DCH273B produces 2.1 joules of impact energy engineered to drive fast drilling in concrete and block while keeping the unit compact and easy to handle. The brushless motor optimizes power delivery and efficiency so you get consistent performance across repeated holes.

• 2.1 J impact energy for efficient bit strikes in masonry.
• SDS chuck accepts common masonry bits for secure retention.
• Brushless motor for improved runtime and lower maintenance.

What working modes does the tool offer and when should I use each?

A rotating dial lets you switch between drill, hammer drill and chip (chisel) modes to match the task. Use the drill mode for standard drilling, hammer drill for masonry penetration and chip mode for light chiseling and removal tasks where you need controlled impact without rotation.

• Drill mode for wood, metal and anchor holes when rotation-only is required.
• Hammer drill mode for drilling anchors and through-holes in concrete.
• Chip mode for light chiseling, tuckpointing or removing mortar.

How does SHOCKS Active Vibration Control benefit day-to-day use?

SHOCKS Active Vibration Control reduces vibration transferred to your hands and arms, improving comfort during prolonged use and helping reduce fatigue. Lower vibration also makes it easier to control the tool for more accurate hole placement on repetitive tasks.

• Less handle vibration for steadier drilling and longer shifts.
• Improved comfort when working overhead or in tight positions.
• Helps maintain control for repeatable hole alignment.

Can this tool meet jobsite safety or compliance requirements?

When paired with the DEWALT DWH303DH On Board Extractor, the DCH273B becomes OSHA Table 1 compliant for many drilling tasks, helping you meet common silica control guidelines. The bare tool’s design also supports common site attachments and mounting hardware for structural work.

• OSHA Table 1 compliance achievable with the DWH303DH extractor.
• Lightweight frame supports overhead mounting and layout tasks.
• Compatible with standard SDS bits and common jobsite accessories.

Who is this for? The DEWALT DCH273B is aimed at professional tradespeople and serious DIYers who need a portable, high-efficiency rotary hammer for concrete, block and masonry work. It’s a good fit for electricians, plumbers, mechanical contractors and general contractors who require a nimble cordless tool for anchor installation, conduit and cable tray mounting, seismic attachments, and light chipping tasks. Note: this listing is for the bare tool only — batteries and charger are sold separately — making it a practical add-on for teams already invested in the DEWALT 20V MAX platform.