Length (L, L1):- 56 mm Diameter 1:- 49 mm Diameter 2:- 44 mm Width Across Flat:- 32 mm Depth of Head (a1, t):- 17,0 mm Drive Connector Square (Female):- 3/4 inch Packing Unit:- 1 Piece Weight:- 0.407 kg Drive Connector Square (Female) Nominal Size:- 20 mm Recommended Accessories:- KB 3270, KB 3275