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  4. WORX WU387.9 20V 22mm Brushless Cordless SDS-Plus Rotary Hammer (Bare Tool, No Battery or Charger)
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WORX 威克士 WU387.9 20V 22mm 無刷鋰電三用電錘(淨機)白底產品圖,配輔助手柄及深度尺;圖中鋰電池不隨機附送
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Worx電錘

WORX WU387.9 20V 22mm Brushless Cordless SDS-Plus Rotary Hammer (Bare Tool, No Battery or Charger)

Supply status
In Stock
SKU
WORX-WU3879
Selected configuration
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Unit price

$380.00/ 件

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$380.00

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Sold by

JACO自營旗艦店

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01 / Product briefing

Product Description

Review the intended use, key features, and technical information supplied for this product.

The WORX WU387.9 is the bare-tool version of the WORX 20V professional brushless cordless rotary hammer. It combines a brushless motor with an SDS-Plus quick-change chuck, delivering 2.0 joules of single impact energy, a no-load speed of 0-1450rpm and an impact rate of up to 4700bpm. Three operating modes - rotary drilling, hammer drilling and chiselling - cover concrete drilling up to 22mm, steel up to 13mm and wood up to 28mm, with an optimal bit range of 6-10mm, making it suitable for installation work, plumbing and fire services, air-conditioning, CCTV and signage mounting. A 19.5mm large-bore cylinder and dual anti-oil-leak sealing keep the tool stable through long shifts, and the bare tool weighs just 2.1kg. This SKU is supplied as a bare tool: no battery and no charger are included, making it ideal for users already on the WORX 20V MAX KROSS PACK battery platform.

Features and Benefits
Brushless motor with 2.0J impact energy

A brushless motor paired with a 19.5mm large-bore hammering cylinder delivers 2.0 joules per blow and up to 4700bpm, drilling concrete up to 22mm in diameter. The brushless design removes carbon-brush wear for higher transmission efficiency and longer tool life.

Three modes with an SDS-Plus chuck

The function dial selects rotary drilling, hammer drilling or chiselling, while the SDS-Plus chuck allows tool-free bit changes. Drilling, hammer drilling into concrete and light chipping are all handled by one tool, with an optimal bit range of 6-10mm.

  • G-TEC gyroscopic anti-rotation protection with an electronic clutch cuts power the moment the bit binds, reducing wrist-twist injury risk.
  • Tile pulse mode for precise starts on tiles and ceramics with less edge chipping.
  • Variable-speed trigger with forward/reverse for controlled hole starting and easy bit withdrawal.
  • Dual anti-oil-leak sealing for a durable, well-sealed housing.
  • Ergonomic soft-grip handle with adjustable auxiliary handle and depth gauge position for less fatigue and controlled hole depth.
  • Runs on the WORX 20V MAX KROSS PACK battery platform, sharing batteries and chargers with other 20V tools in the range.
Specifications
ModelWU387.9
Rated voltage20V (Li-ion)
No-load speed0-1450 rpm
Impact rate0-4700 bpm
Single impact energy2.0 J
Chuck typeSDS-Plus
Operating modesDrilling / Hammer drilling / Chiselling
Max drilling capacity (concrete)22mm
Max drilling capacity (steel)13mm
Max drilling capacity (wood)28mm
Optimal bit range6-10mm
Cylinder diameter19.5mm
Weight (bare tool)2.1 kg
Battery platformWORX 20V MAX KROSS PACK
ConfigurationBare tool (no battery, no charger)
What is in the Box
  • WORX WU387 20V 22mm brushless cordless rotary hammer, bare tool x1
  • Battery and charger NOT included

The battery shown in the product images is for illustration only and is not supplied.

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