Tekton By Michigan Industrial Tools 4891 9-pc. 3/4" Dr. Deep Impact Socket Set (SAE) 8-pc. 3/4" Dr. Socket (SAE): 1", 1-1/16, 1-1/8, 1-1/4, 1-5/16, 1-3/8, 1-7/16, 1-1/2" 1-pc. Storage CaseDrop Forged, Heat Treated Chrome Vanadium Steel Corrosion-Resistant Black Phosphate Finish 6-Point, Beveled-Nose Sockets Hole on Socket Locks onto Drive Tang Meets or Exceeds ANSI Standards Opti-Drive™ Socket Design Contacts Only Flat Surfaces of Fastener Head to Eliminate Rounding Off Corners