Hex plug gauge 2MM,A/F- i.)  Hex. Plug Reversible double sided GO Gauge -2.023 to 2.025 A/F and GO Length 1.805 to 1.810, Nogo Length 1.995 to 2.000 mm         (Required Check The HEX Slot For M4 Grub Screw (F0101.2030.01)   HPG2020.2080.1800.2000
