Hardin HD-8400B50 18V Brushless 3/8 Inch Impact Wrench Kit with 5.0Ah Battery & Charger
The Hardin HD-8400B50 18V Brushless 3/8" Impact Wrench Kit delivers compact fastening power for automotive, construction and maintenance work. Designed with a brushless motor, it provides up to 192 ft. lbs. of torque and 3,700 impacts per minute for dependable performance in demanding applications. A 2-speed power selection with variable trigger control allows precise fastening, while the electronic brake prevents overtightening. Built with a rugged metal housing and an ergonomic rubberized grip, the HD-8400B50 offers strength and comfort in a compact design. This kit includes a Hardin HD-BL1850B 18V 5.0Ah battery and HD-DC18RC charger for extended runtime right out of the box and is also fully compatible with the Hardin VoltCore and Makita 18V LXT platforms.
Kit Includes: (1) HD-8400 Tool, (1) HD-BL1850B 5.0Ah Battery, (1) HD-DC18RC Charger
This item may qualify for an upto further discount. Check Eligibility.
Features:
- Provides professional fastening strength with a Hardin-built brushless motor that delivers up to 192 ft. lbs. of torque and 3,700 blows per minute.
- Expands versatility on the jobsite with a 3/8" square drive design for lag bolts, anchors and mechanical fasteners across construction and maintenance applications.
- Extends runtime and improves efficiency with an electronically controlled brushless motor that runs cooler, eliminates carbon brush wear and optimizes battery energy use for up to 50% longer operation per charge.
- Adapts to a wide range of fastening applications with a 2-speed power selection (0–2,500 RPM & 0–3,200 RPM).
- Prevents overtightening and increases control with a full-speed mode function, electronic brake and variable trigger.
- Enhances durability and jobsite reliability with a rugged housing and compact ergonomic design.
- Improves handling and reduces fatigue with a rubberized soft grip that provides comfort during extended use.
- Illuminates dark or tight workspaces with built-in LED lights for better visibility and accuracy.
- Includes a Hardin HD-BL1850B 18V 5.0Ah battery and HD-DC18RC charger for extended runtime with full cross-compatibility across Hardin VoltCore and Makita 18V LXT batteries.
Specifications:
- Square Head Size: 3/8"
- Load Speed: 0–3,000 RPM & 0–2,500 RPM
- Impacts: 0–3,000 RPM & 0–4,000 IPM
- Fastening Torque: 192 in. lbs.
- Nut Busting Torque: 370 in. lbs.
- Voltage: 18V
- Battery Included: 18V 5.0Ah Li-Ion (HD-BL1850B)
- Charger Included: HD-DC18RC
- Battery Platform: Hardin VoltCore 18V (Makita 18V LXT Compatible)
| Brand | Hardin |
|---|---|
| Model# | HD-8400B50 |

