The Husky BITE 18-Piece Non-Slip Hex Key Set includes hex keys made from a durable steel alloy for reduced wear. Featuring a gripping end for 10% more applicable torque and a ball end design for greater access, the keys resist rotational distortion and offer a variety of SAE and metric sizes. The finish provides resistance to corrosion.. Innovative design increases grip and reduces fastener rounding. Ball end allows an entry angle of up to 25 degree angle of entry. SAE/MM set includes a folding storage caddy. 18-piece set includes SAE sizes 1/16 in., 5/64 in., 3/32 in., 1/8 in., 5/32 in., 3/16 in., 1/4 in., 5/16 in., & 3/8 in., and metric sizes 3mm, 4mm, 4.5mm, 5mm, 6mm, 7mm, 8mm, 9mm, and 10mm. Short side of the key features a unique BITE gripping profile for 10% more torque. Ball end allows an entry angle of up to 25°. Keys feature chamfered ends on both sides to help guide the key into the fastener. Stored in color-coded caddies. Caddies are marked both inside and out with size identification. Keys are color coded for quick identification; black for metric, silver for SAE. Designed to resist rotational distortion. Can be used as short or long-arm keys to allow access in various locations. Caddies snap shut to help secure the keys in place. Meets or exceeds ANSI standards. Call 1-888-HD-HUSKY for customer service and support. Tools backed by a lifetime warranty. If your Husky product ever fails, bring it back and we will replace it for free.. Hand Tool Type: Hex Key Set. Hex Key Type: Hex Key Set. Individual/Set: Set. Number of Pieces: 18. SAE vs. Metric: Metric,SAE. Tools Product Type: Hand Tool