JBO Thread Plug Gauge (GO) - Metric Fine - Left Hand - 6H - M45 x 3 End Mill Holders Left-hand spiral flute with right-hand

Left-hand spiral flute with right-hand cutting: Provides stable feed and controlled chip evacuation for a cleaner

accurate holes and smooth final finishes

This taper-shank reamer combines reliable M2 high-speed steel with thoughtful geometry to support accurate bore finishing in a range of machining setups

Corner radius options for precise finishes: Available with multiple corner radii (including R0

while the carbide body maintains sharpness and stability under heat—giving you reliable

JBO Thread Plug Gauge (GO) - Metric Fine - Left Hand - 6H - M45 x 3 End Mill Holders Left-hand spiral flute with right-handThe 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