Master locks range of ready to go lock out kits are quick and practical solutions to give you the right range of lock out equipment to get the job done straightaway each kit has the right mix of products for specific uses the master lock lockout electrical kit is supplied in a practical toolbox for easy transportation the toolbox is rugged strong with a large storage capacity can be locked with a padlock shackle diameter 6mm max contains the following 3 x s31kared padlocks1 x s806 adjustable