Width of Head (b2):- 47 mm Drive Connector Square (Male):- 1/2 inch Height of Head (a2):- 28,8 mm Drive Connector Rectangular:- 14 x 18 mm Angle:- 7,2 Degree Depth Gauge (C, L):- 25 mm Packing Unit:- 1 Piece Weight:- 0.35 kg Drive Connector Square (Male) Nominal Size:- 12,5 mm Continuous Load:- 1/2″ = 340 N·m