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WORX 20V Cordless Lithium Battery Hammer Drill WU391 (4.0Ah Dual Battery) Electric Drill Impact Hammer Dual-Use Concrete Mixer
Specifications
Whether with carbon brush Without carbon brush
Rated voltage 20V
Battery capacity No battery capacity
Power Mode Lithium battery
Chuck Type Quick chuck Variants / Sale Attributes Style: [4.0 Dual Battery] Dust Collection Rotary Hammer WU391
Package Contents WU391.9 bare device ×1
4.0 battery ×2
charger ×1
Product Description Product Specifications
WU384 Series (Light Hammer)
WU385 Series (Medium Hammer)
WU391 Series (Heavy Hammer)
Electrical installation for decoration and renovation
Kitchen and bathroom hardware installation
Curtain and drying rack installation
Clothes rack and lighting installation
Rebar planting and hole repair
Indoor installation (ceiling/custom)
Monitoring system installation
Door and window installation
Electrical, pipeline, and building installations including floor heating, outdoor billboards, drainage/firefighting pipelines, air conditioning, and outdoor equipment installation
Similar Products
WU385
2.5J
Concrete (C30) WU384 - 20 mm, WU385 - 24 mm, WU391 - 26 mm
Wood WU384 - 20 mm, WU385 - 27 mm, WU391 - 30 mm
WU384 Drill, Hammer Drill, Chisel
WU385 Drill, Hammer Drill, Pulse Tile Breaking, Angle Adjustment
WU391 Angle Adjustment, Pulse Tile Breaking
WU384 & WU385 SDS Quick-Insert G-TEC+ electronic clutch (except WU384T/WU385T/WU391T models without G-TEC)
Mechanical clutch (WU391 includes both electronic and mechanical clutch)
Anti-twist hand protection
Additional details
Voltage 20V brushless motor system
Battery Options 4.0Ah, 5.0Ah, 6.0Ah lithium-ion packs
Continuous drilling Up to 70 holes (Φ10x80 mm in #300 concrete) with 5.0Ah battery
Battery management Overcurrent, overvoltage, overtemperature, charge/discharge protection
Impact Energy 3.0J
Impact Frequency 4700 bpm
Rated Speed 0-950 rpm Large cylinder and hammer design (22mm cylinder)
Balanced air pressure system for stable power output
PURFORCE integrated active dust collection system (optional WA1603 dust box, sold separately)
Independent motor with delayed dust clearing
HEPA filter with 99.97% filtration efficiency
One-button dust box removal
Compatible with WU384, WU385, WU391 series
Additional details
Multi-mode operation drilling, hammer drilling, chiseling, pulse tile breaking, angle adjustment
Suitable for various materials wood, metal, ceramic, brick, concrete Lightweight design for ease of single-hand operation and high-altitude work
Enhanced heat dissipation with optimized airflow and bottom fan layout
Multiple package configurations available including bare tool, single/double battery packs, chargers, dust collection units, and carrying bags
Data verified by SGS, BV, ITS, DEKRA, and Bosch testing centers
Compliance with occupational health standards for dust exposure
Additional details
WU391.9 Bare tool only (no battery or charger)
WU391.1 Double 5.0Ah battery pack, 2A charger, carrying bag
WU391 (4.0Ah single battery) Tool, 4.0Ah battery, 2A charger
WU391 (5.0Ah single battery) Tool, 5.0Ah battery, 2A charger
WU391 (6.0Ah double battery fast charge) Tool, two 6.0Ah batteries, 6A charger
WU391 + WA1603 dust box Various battery options with dust collection system Bare tool configurations exclude battery and charger, intended for existing WORX lithium platform users.
Product images and structure are for reference; actual product may vary.
Performance may vary depending on testing environment and version.
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