Protect yourself from electric shock with Crescent’s new patented isolated technology, eSHOK-GUARD™, providing insulation of up to 1,000 volts with this magnetic drill bit holder. Combining safety and convenience for a revolutionary experience when working around potential live wire applications, this eSHOK-GUARD magnetic drill bit holder's impact-rated design withstands heavy-use, impact tool applications, so you never have to sacrifice protection when using power tools. With over 85% of professionals experiencing shocks on construction job sites, eSHOK-GUARD magnetic drill bit holder is protecting you – for life.