Wrench Connection Connector Combo Set Metric & SAE, EZ Red WC100 & WC200 11 Pieces Includes a 5 piece Standard and a 6 piece Metic set 5 Piece Low Profile SAE Hex Set Sizes: 1/4" to 13/16" 6 Piece Low profile Metric hex set sizes: 8mm - 19mm Connects Wrenches To Each Other No Matter How Long, Short, Or Offset They May Be Magnets Molded In Assure Hold