SWANLAKE 32PCS Hex Key Set, Allen Wrench Set Inch/Metric MM(0.7mm-10mm) SAE(0.028"-3/8)

About this item1.Made of Hardened treated Chrome Vanadium Steel Alloy (Cr V) with black oxide finish.2.Contains 15pcs long reach keys ,15pcs high leverage short keys and 2pcs additional extension bars.3.Long arm wrenches make extra reach and more torque.4.Precisely sized, chamfered ends insert smoothly into fastener head, reduce wear.5.The sizes marked on each wrench for fast size selection and sturdy carrying case for easy organization.