The Milwaukee 17-Piece Folding Hex Key Set - SAE & Metric features the easiest access keys on the market. The access zones on the handle and a key shelf elevate the keys for easy access and selection. The handle has long-lasting, high-contrast markings to help identify the right size key. The full metal body construction withstands high torque and extends the life of the tool in the toughest jobsite conditions, while the shape of the handle is optimized for comfort. The keys rotate 270? for greater access and torque in tight spaces. The convenient folding allen wrench set makes transportation and storage simple. The Milwaukee? 17-Piece Folding Hex Key Set is backed by Milwaukee?s Limited Lifetime Warranty.