Those inj's really take a 27mm (1.0630") socket vs the 1.0625" you are attempting to use. It is a "very" small difference.

Perhaps the inside of your socket has debris in it and needs to be cleaned out?

__________________
Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)