Compact, professional-grade 18V cordless brushless SDS+ rotary hammers built for light-to-medium concrete, masonry, and brick drilling and chiseling tasks. Delivering a consistent 2.5J impact energy, these tools feature a durable brushless motor, three operating modes, and an SDS-Plus chuck for fast, secure bit changes. The lightweight 2kg design, LED work light, and included auxiliary handle make them ideal for renovation, installation work, and overhead drilling. Available in three configurations to suit different power needs: bare tool, 1×4.0Ah battery kit, or 2×4.0Ah battery kit.

Key Features:
- Brushless Motor Technology: Higher efficiency, longer runtime, and extended service life compared to brushed motors.
- 2.5J Impact Energy: Balanced power for light-to-medium concrete and masonry work.
- 3 Operating Modes: Drilling, hammer drilling, and chiseling for versatile construction tasks.
- SDS-Plus Chuck System: Fast, secure bit changes with tool positioning functionality.
- Convenient Control & Safety: Electronic rotation adjustment, rotation switch, work mode switch, charge level indicator, and LED work light.
- Lightweight Design: Only 2kg tool weight for comfortable overhead and extended use.
- Complete Kit Accessories: Includes auxiliary handle and drilling depth stop for improved stability and precision.
Common Specifications:
| Parameter |
Details |
| Product Type |
Cordless Brushless SDS+ Rotary Hammer |
| Voltage |
18 V DC |
| Impact Energy |
2.5 J |
| Motor Type |
Brushless |
| No-Load Speed |
0–1400 rpm |
| Impact Frequency |
0–5000 min⁻¹ |
| Chuck Type |
SDS-Plus |
| Max Drilling Diameter |
Concrete: 22 mm |
| Functions |
Drilling, Hammer Drilling, Chiseling, Tool Positioning |
| Special Features |
Electronic Rotation Adjustment, Rotation Switch, Work Mode Switch, Tool Positioning Function, LED Work Light, Quick Charging, Charge Level Indicator |
| Insulation Class |
III |
| Protection Grade |
IPX0 |
| Acoustic Pressure |
94.3 ± 3.0 dB(A) |
| Acoustic Power |
102.3 ± 3.0 dB(A) |
| Vibration |
11.364 ± 1.5 m/s² |
| Tool Weight |
2 kg |
| Included Accessories |
Auxiliary handle, drilling depth stop |
Variant Comparison Table:
| Parameter |
YT-827723 (Bare Tool) |
YT-827721 (1×4.0Ah Kit) |
YT-827722 (2×4.0Ah Kit) |
| Battery Included |
None |
1 × 4.0Ah Li-ion |
2 × 4.0Ah Li-ion |
| Battery Capacity |
N/A |
4000 mAh (72 Wh) |
4000 mAh (72 Wh) |
| Charger Included |
No |
Yes |
Yes |
| Charging Time |
N/A |
2 hours |
2 hours |
| Package Contents |
Rotary hammer + accessories |
Rotary hammer + 1× battery + charger + accessories |
Rotary hammer + 2× batteries + charger + accessories |
| Full Package Weight |
2.833 kg |
5.333 kg |
6 kg |
| Ideal For |
Users with existing 18V batteries/chargers; replacement tool |
Regular use, home renovation, light professional work |
Heavy/extended use, all-day construction projects, non-stop runtime |