Sockets 3/8 in. Drive 3/8 in. - 3/4 in. and 9 mm - 19 mm Black

Quickly Removes Damaged Or Rounded Nuts, Bolts, Studs, & Socket Head Cap Screws In Tight Quarters. The Through Hole Design Allows Them To Also Be Used On Long Studs. Fits SAE Sizes 3/8" To 3/4" And Metric Sizes From 9 mm Up To 19 mm. Used Where Standard Twist Sockets Will Not Fit. Can Be Used w/ An Open-end Wrench, Or Wtih A Socket.