Model No NS124. Die forged Beryllium Copper. 10-32mm Socket set. Includes 1/2″Sq drive ratchet wrench, extension bars speed brace and sliding T-bar. Supplied in storage case. Contents: Standard Sockets; 10-32mm, Extension Bars; 125, 250mm, 1/2″Sq Drive Ratchet Wrench, Speed Brace, Sliding T-Handle.