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Suitable for deep groove work and intricate mold geometries
Left-hand spiral flute with right-hand cutting: Provides stable cutting action and efficient chip evacuation for a clean bore
helping the tool maintain sharpness and extend service life
designed to finish holes to a precise size with repeatable results
Its long-neck design provides essential clearance when working on draft-angle parts and deep features
JBO Thread Ring Gauge (NoGo) - Metric Coarse - Left Hand - 6g - M8 x 1.25 ER Collet Chucks Suitable for deep groove workThe JBO NoGo Ring Gauge Metric Coarse, Left Hand, M8 x 1. 25 (6g) is a precision inspection tool designed to verify external thread diameters on components. Its ideal for engineers, machinists, quality teams, and workshop staff who need fast, reliable checks that parts meet exact thread standards. Made from hardened steel, this gauge delivers long lasting durability in demanding shop environments. The ring design supports quick, non destructive
