Park Tool's AWS-9 Fold-up Hex Wrench Set Park Tool's one piece fiber-reinforced resin handle is smooth, easy to handle, and stronger than any steel fold up tool we've tried. 4mm, 5mm, and 6mm hex wrenches plus a Phillips and standard screwdriver make the AWS-9 a great carry-along emergency tool, plus a great shop tool. This tool can be used in 3 different positions including a right angle positive stop position. Hex wrenches are made of 8650 chrome vanadium tool steel with neatly chamfered tips for a perfect fit. Weighs just 116 grams (4.1 ounces).