●Durable ratchet head: made of hardened chrome vanadium steel alloy (Cr-V) ●EASY STORAGE A sturdy plastic storage case is included. Non-slip handle: knurled handle ●Easy to read: high contrast and dual range scale. Accuracy: pre-calibrated to +-4% ●Accessories included: 1/4" drive to 3/8" driver adapter and 1/4" drive extension rod ●Simple and reliable: "Click" sound indicates that the preset torque value is reached. Stop exerting strength when you hear and feel it.