US PRO Tools 18PC 1/2" DR Deep impact Sockets 10 - 24mm And Extension Bar Set 3428 Deep impact sockets in the following sizes: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23 and 24mm Impact extension bars in the following sizes: 75, 125 and 250mm (3", 5" and 10" approx) Hardened CR-V material with phosphate finish to protect from rust and corrosion, supplied in storage case. 1/2" Drive 6 Point Deep Sockets: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23 and 24mm Extension Bars: 75, 125 and 250mm Hardened CR-V material with Phosphate Finish Supplied in a storage Case This high-quality Socket Set comes to you brand new with retail packaging. This is a perfect addition / replacement to any toolbox or workshop