They use an internal brush system electrical connection within the cable reel which allows the cable to be retracted while still connected to a device

Ideal for Carving etc

Superior quality - Triple-distilled for purity & consistency

Power Consumption (W or kW): 350 – 1 000 W

Includes: Multi position rubber side handle

Screwdriver Set 12Pce Phillips/Slotted - SP34002 by SP Tools BSW Taper Chrome Tap They use an internal brushHeavy duty screwdriversDurable ergonomic handles, featuring anti slip gripMagnetic tips for greater fastener controlChrome Vanadium Steel (SVCM) shaftsHardened and tempered for strength and durability