DEWALT DCH172B ATOMIC™ 20V MAX Rotary Hammer (Tool Only): The Smart Add-On for DEWALT Platform Users

Introduction

If you already work within the DEWALT 20V MAX battery ecosystem, adding a new tool to your kit should be straightforward — pick the tool you need, use the batteries you already own, and get to work. That is exactly the value proposition of the DEWALT DCH172B ATOMIC™ 20V MAX 5/8 in. Brushless SDS PLUS Rotary Hammer (Tool Only).

The DCH172B is the bare-tool version of DEWALT’s compact ATOMIC™ rotary hammer — the same brushless motor, the same German-engineered mechanism, the same 1.4 Joules of impact energy, and the same SHOCKS ACTIVE VIBRATION CONTROL® System as the kit version, at a lower price point because batteries and charger are sold separately. It is part of DEWALT’s PERFORM and PROTECT™ product line, reflecting the brand’s commitment to both performance and user safety.

For tradespeople who have already invested in the DEWALT 20V MAX platform, the DCH172B is one of the most efficient ways to add a professional-grade compact rotary hammer to an existing tool lineup.

What is the DEWALT DCH172B?

The DEWALT DCH172B is a cordless SDS PLUS rotary hammer in DEWALT’s ATOMIC™ compact tool series. It shares its core specifications with the DCH172D2 kit — same motor, same mechanism, same impact energy — but is sold without batteries or a charger, making it the right choice for buyers who do not need to purchase a battery system from scratch.

The ATOMIC™ designation signals a compact, lightweight form factor without compromising professional output. The SDS PLUS chuck allows for fast, tool-free bit changes and delivers the independent bit movement that makes rotary hammers far more effective than standard drills for concrete and masonry work.

The tool is designated as part of the PERFORM and PROTECT™ line, which groups DEWALT tools designed with active vibration management and dust control capabilities for safer and more comfortable professional use.

It includes a 360° side handle, depth rod, and belt hook. Battery and charger are sold separately.

Key features

• 1.4 Joules of impact energy — The same output as the kit version, optimized for 5/8-inch drilling in concrete for trade applications including rod hanging, cable tray mounting, clip and bracket mounting, and railing installation.
• Brushless motor — More efficient than brushed motors, delivering longer runtime per charge, less heat buildup, and extended tool lifespan with minimal maintenance.
• German-engineered mechanism — The internal hammer mechanism is built for durability and consistent performance under demanding repeated-use conditions.
• SHOCKS ACTIVE VIBRATION CONTROL® System — Reduces vibration felt at the handles compared to rotary hammers without this feature, important for user comfort and safety during extended concrete drilling sessions.
• PERFORM and PROTECT™ product line — Indicates integration of active safety and performance features, including vibration control and dust management compatibility.
• Mode selector switch — Switches quickly between drill mode and hammer drill mode for versatility across different materials.
• SDS PLUS chuck — Fast, tool-free bit changes with the independent bit movement that makes rotary hammers effective in concrete and masonry.
• 360° side handle — Adjustable for optimal grip angle and drilling control.
• Depth rod — Enables consistent drilling depth for repetitive fastener and anchor installations.
• Belt hook — Keeps the tool off the ground and within reach between tasks.
• OSHA Table 1 Compliant — When paired with the separately available DWH200D shroud and DWH161D1 dust extractor.
• 20V MAX battery compatible — Works with all DEWALT 20V MAX batteries. Battery and charger sold separately.

Why choose the DEWALT DCH172B (Tool Only)?

It maximizes value for existing DEWALT platform users. If you already own DEWALT 20V MAX batteries — whether from a drill, circular saw, reciprocating saw, or any other tool — those same batteries power the DCH172B. At $189.00 versus $259.00 for the full kit, the tool-only option saves you $70 when you do not need redundant batteries and a charger.

Same performance as the kit version, lower acquisition cost. The DCH172B does not sacrifice any capability compared to the DCH172D2. The brushless motor, German-engineered mechanism, and 1.4 Joules of impact energy are identical. You are only skipping the batteries and charger — not the performance.

Compact form factor for confined spaces. The ATOMIC™ design keeps this rotary hammer compact and maneuverable in tight jobsite spaces — inside wall cavities, above ceilings, in mechanical rooms, and in any location where a full-size hammer would be difficult to control.

PERFORM and PROTECT™ designation adds peace of mind. The vibration control system and dust management compatibility built into this line reflect DEWALT’s focus on tools designed for sustained professional use — not just short-term performance.

Who is this tool for?

The DEWALT DCH172B is the right choice for:

• Existing DEWALT 20V MAX users who want to add a compact rotary hammer without buying a redundant battery and charger.
• Electricians and HVAC contractors who already carry DEWALT cordless tools and need an SDS PLUS rotary hammer for concrete fastening tasks.
• General contractors and tradespeople who need a second or backup rotary hammer on the same battery platform already in use on the job.
• Tool fleet managers equipping multiple workers with DEWALT 20V MAX tools where batteries and chargers are already distributed across the team.
• Budget-conscious buyers with existing 20V MAX batteries who want professional-grade rotary hammer performance at the lowest entry cost.
• Anyone working in tight or overhead spaces where the compact ATOMIC™ form factor is a practical advantage.

How to use the DEWALT DCH172B

1. Installing your 20V MAX battery — Slide any compatible DEWALT 20V MAX battery into the battery slot until it clicks. Higher-capacity batteries (4.0Ah, 5.0Ah) will provide longer runtime for extended drilling sessions.
2. Installing an SDS PLUS bit — Push the bit into the SDS PLUS chuck and rotate until it locks. Pull back lightly to confirm it is secured. No tools required for bit changes.
3. Selecting the operating mode — Use the mode selector to choose between drill only (for non-masonry materials) and hammer drill (for concrete and masonry). Using the wrong mode for the material reduces efficiency and may damage bits.
4. Attaching the side handle — Position the 360° side handle at your preferred angle and tighten before drilling. The side handle is essential for control during concrete drilling, especially overhead or in confined positions.
5. Setting the depth rod — For repetitive anchor or fastener installations, set the depth rod to your required depth to maintain consistency across multiple holes.
6. Drilling technique — Apply steady, consistent forward pressure. Let the hammer mechanism work — excessive force reduces efficiency and increases bit wear. Keep the drill perpendicular to the surface for clean, accurate holes.
7. OSHA compliance — For regulated jobsites requiring silica dust control, pair with the DWH200D shroud and DWH161D1 dust extractor (sold separately) to achieve OSHA Table 1 compliance.

Buying considerations

• Battery and charger not included — This is the tool-only version. Ensure you have compatible DEWALT 20V MAX batteries and a charger before purchasing. If you do not, the DCH172D2 kit includes everything you need.
• Battery capacity matters for runtime — The included accessories do not include batteries, but higher-capacity 20V MAX batteries (4.0Ah or 5.0Ah) will significantly extend runtime for heavy drilling sessions compared to smaller 2.0Ah packs.
• 5/8-inch drilling capacity — Optimized for 5/8-inch holes in concrete for typical trade fastening applications. For heavier-duty large-diameter drilling, consider a higher-energy rotary hammer.
• OSHA compliance requires additional accessories — The DWH200D shroud and DWH161D1 dust extractor needed for OSHA Table 1 compliance are sold separately and not included.
• SDS PLUS bit standard — Uses the widely available SDS PLUS bit format. Any existing SDS PLUS bits are compatible.
• PERFORM and PROTECT™ compatibility — The tool is designed to work with DEWALT’s broader PERFORM and PROTECT™ accessory ecosystem for dust control and active vibration management.

Benefits summary

• 1.4 Joules of impact energy — same performance as the kit version
• Brushless motor for efficient runtime and extended tool life
• German-engineered mechanism for reliable, durable concrete drilling
• SHOCKS ACTIVE VIBRATION CONTROL® reduces handle vibration for safer extended use
• PERFORM and PROTECT™ product line — built for professional safety and performance
• Compact ATOMIC™ form factor — ideal for confined and overhead drilling
• Mode selector switch for drill and hammer drill versatility
• 360° side handle, depth rod, and belt hook included
• OSHA Table 1 compliant when paired with compatible dust accessories
• 20V MAX platform compatible — use your existing batteries and charger
• $70 less than the kit version for buyers who already have 20V MAX batteries

Already on the DEWALT 20V MAX platform? This is your next tool.

The DEWALT DCH172B ATOMIC™ gives existing DEWALT platform users access to a professional-grade compact rotary hammer at the most efficient price point. No redundant batteries, no wasted spend — just the tool, ready to work with the batteries you already carry.

View the DEWALT DCH172B ATOMIC™ Rotary Hammer (Tool Only) on Bore-X →

Frequently asked questions

What is the difference between the DCH172B and the DCH172D2?

The DCH172B is the tool-only version — same rotary hammer, no batteries or charger included. The DCH172D2 is the kit version, which includes two 2.0Ah batteries, a charger, and a kit box. If you already own DEWALT 20V MAX batteries, the DCH172B is typically the better value.

Which DEWALT 20V MAX batteries are compatible with the DCH172B?

The DCH172B is compatible with all DEWALT 20V MAX batteries. Higher-capacity batteries (4.0Ah, 5.0Ah) will provide longer runtime for demanding or extended drilling sessions.

Does the DCH172B perform the same as the DCH172D2 kit?

Yes. Both tools share the same brushless motor, German-engineered mechanism, 1.4 Joules of impact energy, vibration control system, and SDS PLUS chuck. The only difference is the DCH172B does not include batteries or a charger.

What is the PERFORM and PROTECT™ product line?

PERFORM and PROTECT™ is a DEWALT product designation for tools that integrate active safety and performance technologies — including vibration management systems and dust control compatibility — for more comfortable and safer professional use.

Is the DCH172B OSHA Table 1 compliant for silica dust control?

Yes, when paired with the separately available DWH200D shroud and DWH161D1 dust extractor. These accessories are not included with the tool.

Does the DCH172B come with a side handle and depth rod?

Yes. The tool includes a 360° side handle, depth rod, and belt hook. Battery and charger are the only items not included.

What applications is the DCH172B suited for?

It is designed for rod hanging, concrete forming, cable tray and strut mounting, clip and bracket mounting, and railing mounting — the same trade applications as the kit version.

Is the DCH172B worth it if I already have a larger rotary hammer?

Yes, if you work in spaces where a larger hammer is impractical. The ATOMIC™ compact form factor makes the DCH172B well-suited to confined spaces, overhead work, and situations where a full-size rotary hammer is too bulky to maneuver effectively.