3/8" Drive Magnetic Socket Rail including 14 Clips 83127 by GEARWRENCH Power Tool Combo Set They use an internal brush

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

Specification:- Motor: 1

drilling capacities in wood 13mm No Load Speed 0-680rpm

Roller ball bearing top slides provide smooth sliding top motion

Stores up to 500 thermal images internally

3/8" Drive Magnetic Socket Rail including 14 Clips 83127 by GEARWRENCH Power Tool Combo Set They use an internal brushFeatures: Rotating socket clips make loading and unloading easy Aluminum frame keeps rails straight and secure Every clip has a ball bearing socket retention system Solid magnetic plates secure rails to any steel surface Sockets can easily rotate 360 for quick identification Padded back prevents scratches and marring Rails can be mounted to walls or tool boards using the holes on either end Includes 14 socket organizer clips