Depth & Counter Bore Gauge Dia.Go-9.406 to 9.410,Nogo-9.590 to 9.600 mm,Go Nogo Length standard,Depth-Go-1.206 to 1.210 & Nogo Depth-1.390 to 1.400 mm (Go-Nogo Guage required to check the CHS Plate Forging B0704F) DCBB0704F