DEWALT 20V MAX SDS Plus vs DEWALT SDS Rotary Hammer Drill: Spec Comparison
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When you compare the dewalt 20v max sds plus vs sds rotary hammer drill, you are looking at two distinct power sources. Both units offer high-impact drilling for concrete work. The primary difference lies in their power delivery. One uses a battery system for portability. The other relies on a corded connection for continuous runtime. Each design serves different job site needs based on your power access requirements.
Key differences
| Aspect | DEWALT 20V MAX 1-Inch Cordless Rotary Hammer | DEWALT 1-1/8-Inch Corded SDS Rotary Hammer |
|---|---|---|
| Power Source | 20V MAX Cordless | Corded, 115 Volts |
| Chuck Size | 1 In. | 1-1/8 In. |
| Impact Energy | 2.6 Joules | 3.0 Joules |
| Motor Type | Brushless | 8.5 amp |
| Weight | 5 lbs. | not listed |
Which one should you choose?
Choose DEWALT 20V MAX 1-Inch Cordless Rotary Hammer if
- You need portability without a power cord
- You prefer a lighter tool for overhead work
- You already own 20V MAX batteries
Choose DEWALT 1-1/8-Inch Corded SDS Rotary Hammer if
- You require maximum impact energy for hard concrete
- You need continuous runtime without battery swaps
- You prefer vibration control features
Verdict: Choose the cordless model if you value mobility and lighter weight for varied tasks. Pick the corded unit if you need higher impact energy and steady power for heavy-duty drilling. Your choice depends on whether you prioritize battery freedom or raw drilling force.
Cordless vs Corded Power Specs
Power Source
The DEWALT 20V MAX 1-Inch Cordless Rotary Hammer relies on a 20V MAX battery system for operation. This cordless design allows you to move freely without being tethered to an outlet, making it ideal for remote job sites or areas without easy power access. In contrast, the DEWALT 1-1/8-Inch Corded SDS Rotary Hammer plugs into a standard 115-volt outlet. This corded connection provides continuous, uninterrupted power as long as you have access to electricity. You do not need to manage battery charge levels, but you must manage the cord length and availability of wall outlets during your work.
Impact Energy
When drilling into concrete, impact energy determines how effectively the tool breaks through hard material. The DEWALT 20V MAX 1-Inch Cordless Rotary Hammer delivers 2.6 joules of impact energy. This level of power is sufficient for fast drilling in concrete for tasks like forming and rod hanging. The DEWALT 1-1/8-Inch Corded SDS Rotary Hammer offers 3.0 joules of impact energy. This higher energy output suggests potentially faster drilling and chipping speeds in dense concrete. If your work involves frequent, heavy-duty drilling in tough masonry, the higher joule rating of the corded model may provide a performance advantage.
Chuck Size
The maximum bit diameter you can use is defined by the chuck size. The DEWALT 20V MAX 1-Inch Cordless Rotary Hammer features a 1-inch chuck capacity. This size is compatible with standard SDS Plus bits, which are common for general construction tasks like mounting brackets and steel stanchions. The DEWALT 1-1/8-Inch Corded SDS Rotary Hammer has a larger 1-1/8-inch chuck. This increased capacity allows you to use larger diameter bits, which are often required for heavier structural connections or larger anchor bolts. If you frequently need to drill larger holes, the corded model offers greater versatility in bit selection.
Motor Type
The internal motor technology affects efficiency and runtime. The DEWALT 20V MAX 1-Inch Cordless Rotary Hammer uses a brushless motor. Brushless motors are generally more efficient, generate less heat, and offer longer runtime on a single battery charge compared to brushed motors. They also typically require less maintenance since there are no brushes to wear out. The DEWALT 1-1/8-Inch Corded SDS Rotary Hammer is equipped with an 8.5-amp high-performance motor. While the data does not specify if this motor is brushed or brushless, the high amperage indicates a focus on raw power delivery. For battery-powered efficiency, the brushless design is a clear technical advantage.
Weight
Handling a rotary hammer for extended periods requires consideration of tool weight. The DEWALT 20V MAX 1-Inch Cordless Rotary Hammer weighs 5 pounds. This lightweight design reduces user fatigue, making it easier to maneuver for overhead work or repetitive tasks like clip and bracket mounting. The DEWALT 1-1/8-Inch Corded SDS Rotary Hammer does not list a specific weight in the provided data. However, corded rotary hammers of this class are often heavier due to the larger motor and internal components. If portability and reduced strain on your arms are priorities, the lighter cordless option is likely the more comfortable choice for all-day use.
Choose the right rotary hammer for you
Users needing portability and lightweight handling
The DEWALT 20V MAX model weighs just 5 lbs. This light weight makes it easier to handle for overhead work or long hours. Its 2.6 Joules of impact energy provides fast drilling in concrete. The brushless motor ensures efficient runtime. You get freedom from cords, which is essential for remote job sites or tight spaces where outlets are unavailable.
Professionals requiring maximum power and vibration control
The corded DEWALT D25263K delivers 3.0 Joules of impact energy for faster drilling and chipping. Its 8.5 amp motor offers consistent power without battery fade. Active Vibration Control shocks reduce the vibration felt at the handles. This feature protects your hands during extended use. The integral clutch reduces sudden torque reactions if the bit jams, enhancing safety during heavy-duty concrete work.
Workers drilling larger holes in masonry
This unit features a 1-1/8 inch chuck size, which is larger than the 1-inch option on the cordless model. This allows you to accept bigger SDS bits for larger diameter holes. The corded power source ensures you never run out of juice mid-task. The rotating brush ring delivers full torque in both directions, making it reliable for demanding structural connections and anchorage applications.
The products compared
DEWALT 20V MAX 1-Inch Cordless Rotary Hammer
Best for: Portable structural connections and rod hanging
- Power Source
- 20V MAX Cordless
- Impact Energy
- 2.6 Joules
- Chuck Size
- 1 In.
- Bit System
- SDS Plus
- Motor Type
- Brushless
- Battery Included
- No (Bare Tool Only)
View on Amazon: DEWALT 20V MAX 1-Inch Cordless Rotary Hammer Affiliate link
This is a bare-tool cordless rotary hammer using a 20V MAX battery system. It delivers 2.6 Joules of impact energy through a brushless motor. The tool features an SDS Plus bit system and a 1-inch chuck capacity. It weighs 5 pounds and includes a side handle and depth rod. You get three mode settings for drilling, hammer drilling, or chipping. This kit suits professionals needing portable concrete work.
Pros
- 2.6 Joules of impact energy for fast concrete drilling
- Brushless motor for efficient runtime and performance
- Three application modes: Drill, Hammer Drill, or Chip
- Lightweight 5-pound design for reduced fatigue
- Includes 360-degree side handle and depth rod
Cons
- Sold as a bare tool with no battery included
- 2.6 Joules impact energy is lower than corded competitors
- SDS Plus system limits bit shank compatibility
Good fit if
- You need portable power for structural connections
- You already own DEWALT 20V MAX batteries
- You require three distinct mode settings
Skip if
- You need a battery and charger included
- You require high-impact energy for heavy masonry
- You prefer a corded tool for unlimited runtime
Verdict: DEWALT 20V SDS Plus Rotary Hammer fits contractors who already use the 20V MAX platform and need a lightweight tool for rod hanging or bracket mounting. It is not ideal for users who need a complete kit with batteries or higher impact energy.
DEWALT 1-1/8-Inch Corded SDS Rotary Hammer
Best for: Fixed-location drilling with consistent power
- Power Source
- Corded, 8.5 amp, 115 Volts
- Impact Energy
- 3.0 joules
- Chuck Size
- 1-1/8 In.
- Bit System
- SDS
- Included Tools
- Drill Driver, Hammer Drill, Rotary Hammer
- Dimensions
- 19.2 × 12.8 × 5.28 inches
View on Amazon: DEWALT 1-1/8-Inch Corded SDS Rotary Hammer Affiliate link
This DEWALT corded rotary hammer delivers 3.0 joules of impact energy for fast drilling and chipping. It features an 8.5-amp motor and Active Vibration Control to reduce handle shock. The rotating brush ring maintains torque in both directions. It includes an integral clutch to prevent sudden reactions if the bit jams. This tool suits users who need consistent power without battery constraints.
Pros
- 3.0 joules impact energy for speed
- Active Vibration Control reduces handle shock
- 8.5-amp high performance motor
- Rotating brush ring for full torque
Cons
- Requires a 115-volt power outlet
- Heavier build due to corded design
- No battery compatibility for cordless use
Good fit if
- You work in a location with easy access to power outlets
- You need continuous high-torque drilling without battery recharge time
- You prioritize vibration reduction for extended use
Skip if
- You require cordless mobility for remote job sites
- You need a lightweight tool for overhead work
- You only have battery-powered DEWALT 20V MAX tools
Verdict: DEWALT 8.5A Corded SDS Rotary Hammer is ideal for users who need reliable, high-torque drilling in fixed locations with access to power. It offers consistent performance without the downtime of battery changes.
Specifications side by side
| Spec | DEWALT 20V MAX 1-Inch Cordless Rotary Hammer | DEWALT 1-1/8-Inch Corded SDS Rotary Hammer |
|---|---|---|
| Power Source | 20V MAX Cordless | Corded, 8.5 amp, 115 Volts |
| Impact Energy | 2.6 Joules | 3.0 joules |
| Chuck Size | 1 In. | 1-1/8 In. |
| Bit System | SDS Plus | SDS |
| Motor Type | Brushless | not stated |
| Battery Included | No (Bare Tool Only) | not stated |
| Weight | 5 lbs. | not stated |
| Voltage | 20V | not stated |
| Included Tools | Drill Driver, Hammer Drill, Rotary Hammer | Drill Driver, Hammer Drill, Rotary Hammer |
| Bit Type | SDS-Plus | not stated |
| Dimensions | 16.2 × 9 × 4 inches | 19.2 × 12.8 × 5.28 inches |
| Size | One Size | 1-1/8" |
| Color | Yeif | 1-1/8" |
| Model | DCH133B | D25263K |
Frequently asked questions
Is the DEWALT 20V MAX rotary hammer sold with batteries included?
No, the DEWALT 20V MAX 1-Inch Cordless Rotary Hammer is a bare tool. It does not include batteries or a charger. You must purchase compatible 20V MAX batteries separately. This design suits users who already own DEWALT batteries. It keeps the initial tool cost lower while allowing you to use your existing power source.
What is the weight difference between the cordless and corded models?
The DEWALT 20V MAX cordless model weighs 5 pounds. The corded model does not list a specific weight in the provided data. The cordless unit is designed for lightweight handling during overhead work. Its compact size measures 16.2 inches in length. This makes it easier to maneuver in tight spaces compared to heavier corded alternatives.
Which model is better for portable structural connections?
The DEWALT 20V MAX 1-Inch Cordless Rotary Hammer is best for portable structural connections. It is ideal for rod hanging and bracket mounting. The cordless design allows you to move freely without a power cord. This makes it suitable for remote job sites where outlets are not available. The corded model is better for fixed locations with consistent power access.
What type of bit does the cordless DEWALT hammer use?
The DEWALT 20V MAX cordless rotary hammer uses SDS-Plus bits. It features a 1-inch chuck size. This system allows for quick bit changes and secure holding. SDS-Plus bits are standard for many concrete drilling tasks. Ensure you have compatible SDS-Plus bits for your specific drilling needs.
Can the corded model be used for overhead drilling?
The DEWALT 1-1/8-Inch Corded SDS Rotary Hammer is ideal for fixed-location drilling. It is not designed for portability due to the power cord. While it offers high-torque drilling, the cord may limit overhead work flexibility. The cordless model is lighter and better suited for overhead tasks. The corded unit requires access to a power outlet.
What are the dimensions of the cordless DEWALT rotary hammer?
The DEWALT 20V MAX cordless rotary hammer measures 16.2 inches in length, 9 inches in width, and 4 inches in height. These dimensions make it compact for storage and transport. The tool is designed for one-size fit. Its physical size supports easy handling during various drilling applications.
Is the corded model suitable for high-torque concrete drilling?
Yes, the DEWALT 1-1/8-Inch Corded SDS Rotary Hammer is suitable for high-torque concrete drilling. It provides consistent performance without battery downtime. The corded power source ensures reliable operation in fixed locations. It is ideal for users who need continuous power for heavy-duty concrete work. The 1-1/8-inch chuck size supports larger bits.