JBO Thread Plug Gauge - Metric Fine Go/No-Go - Left Hand - 6H - M25 x 1 Power Milling Chucks and deliberate corner radius helps

and deliberate corner radius helps you finish tight tolerances faster with fewer reworks

The Omega BT40 ER Collet Chuck is a precision tool holder designed for BT40 spindles

Long Shank: Extra reach for deep grooves and pockets

rigid profile minimizes deflection

more consistent milling with less downtime

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Left Hand - 6H - M25 x 1 Power Milling Chucks and deliberate corner radius helpsThe JBO Thread Plug Gauge is a precision left hand, metric fine thread Go No Go gauge designed to verify M25 x 1 threaded holes to a 6H tolerance. Its built for applications where exact threading matters, making it ideal for machining, assembly, and quality control work where a fast, reliable check is essential. Crafted with hardened steel for lasting performance, this gauge delivers quick, decisive checks so you can confirm hole readiness without