JBO Thread Plug Gauge (GO) - Metric Fine - Left Hand - 6H - M45 x 3 End Mill Holders 08mm is a precision stub

08mm is a precision stub reamer engineered to finish drilled holes to ISO H4 tolerance

while the instrument’s clear pass/fail criteria helps technicians make quick

repeatable fit in standard toolholders and precise diameter control within tight ISO limits for reliable interchangeability

DIN 8051 B tolerance: D = ISO H5: Delivers tight

and a robust taper shank delivers dependable performance across repeated jobs in engineering

JBO Thread Plug Gauge (GO) - Metric Fine - Left Hand - 6H - M45 x 3 End Mill Holders 08mm is a precision stubThe JBO Thread Plug Gauge (GO) Metric Fine, Left Hand, 6H, M45 x 3 is a precision inspection tool designed to verify internal metric fine threads in threaded holes. Its ideal for machinists, quality control teams, engineers, and workshop technicians who need fast, reliable go no go checks to confirm hole size meets specification. Precisely sized GO check for M45 x 3 left hand threads: Provides clear pass fail guidance to quickly confirm hole