TEKTON WRN53167 Ratcheting Combination Wrench Set with Store and Go Keeper, Metric, 8 mm - 16 mm, 9-Piece 6-point box end snugly fits hex-shaped fastener heads and resists slipping off while you work Box end opening is designed to grip flat sides of fastener heads, not corners, to prevent round-off 72-tooth ratchet gear needs only a 5-degree working swing arc Open end is angled 15 degrees so the wrench can be flipped over to engage fasteners twice as often in tight spaces Includes Store-and-Go Keeper with space-saving folding handle and nonslip grippers to lock in wrenches