Gearwrench® 25 piece SAE Metric Torax Folding Hex Key Set Eyewear Opening: 25 – 50 mm 86709 Opening: 25 – 50 mm • Grow your audio system with compatible Fusion speakers Keys made with alloy steel for maximum strength and to resist rotational distortionChamfered edges on both ends help guide the key into the fastener smoothly and quicklyHandle constructed from dual material and designed for comfortKeys rotate 270 degrees for greater access and torqueKeys are clearly marked for easy identificationMeets or exceeds ASME standards The GEARWRENCH 25 Piece SAE Metric Torx folding key set offers an organized and durable solution for hex key needs