JBO Thread Plug Gauge - Metric Coarse Go/No-Go - Left Hand - 6H - M36 x 4 Morse Taper Adaptor enabling deeper grooves with accurate

enabling deeper grooves with accurate dimensions and reliable surface finishes

sharp cutting edges for reliable

it delivers controlled cutting and smooth chip evacuation in a compact

giving you confidence from setup to finished part

helping to keep your operations cooler and extending the tool’s usable life

JBO Thread Plug Gauge - Metric Coarse Go/No-Go - Left Hand - 6H - M36 x 4 Morse Taper Adaptor enabling deeper grooves with accurateThe JBO Thread Plug Gauge is a precision inspection tool for metric coarse threads. This left hand Go No Go gauge is calibrated for M36 x 4 holes, allowing fast, consistent verification of thread fit during assembly, machining checks, and quality control. Made from hardened steel, it is built to endure daily use in demanding shop environments, resisting wear that could affect accuracy. The compact, knurled body provides a secure grip for quick