JBO Thread Ring Gauge (GO) - Metric Fine - Left Hand - 6g - M21 x 0.75 Hydraulic Expansion Chucks 54 mm size provides a

54 mm size provides a reliable fit for precise components

Magafor Reamer with spiral flute and straight shank is a precision reaming tool built for consistent hole finishing

helping maintain surface quality in deep holes

extending tool life and reducing rework in hard-to-cut alloys

28 mm overall length

JBO Thread Ring Gauge (GO) - Metric Fine - Left Hand - 6g - M21 x 0.75 Hydraulic Expansion Chucks 54 mm size provides aThe JBO Thread Ring Gauge (GO) Metric Fine Left Hand 6g M21 x 0. 75 is a precision inspection tool designed to verify external thread diameters against metric fine thread standards. It serves machinists, quality control professionals, and engineers by providing a reliable go no go reference to confirm parts meet exact threading specifications. crafted from hardened steel for durability in demanding environments, this GO gauge resists wear and