MIT 3/8 -DRIVE MECHANIC'S FLEX RATCHET HANDLE features: Drop Forged Chrome Vanadium Steel, Heat Treated and Chrome Plated, Metal Speed Spin Disc, Spring Loaded Ball Bearings Hold Sockets and Accessories Securely, Quick-Action Reverse Lever, Ratchet Head Provides a Smooth and Accurate Pivot for Working in Tight Areas.