Width of Head (b2):- 25 mm Drive Connector Square (Male):- 1/4 inch Height of Head (a2):- 16,6 mm Drive Connector Rectangular:- 9 x 12 mm Angle:- 5 Degree Depth Gauge (C, L):- 17,5 mm Packing Unit:- 1 Piece Weight:- 0.06 kg Drive Connector Square (Male) Nominal Size:- 6,3 mm Continuous Load:- 1/4″ = 30 N·m