eLuSiVeMiTe Member Messages 16,441 Location ...... Jul 12, 2018 #41 Would assume the recess is to stop weld bead etc fouling the square.
grim_d Unlikeable idiot. Messages 4,246 Location Scotland - Ayrshire Jul 12, 2018 #42 Yes it's to stop debris gathering there and throwing off the square.
