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The M5-M12 1/4"-1/2" thread repair kit includes 314 pieces, containing drills, plugs, helical inserts (helicoil), and installation/breaking tools. It is suitable for the 5 most common metric and inch sizes (SAE and Metric). The included sizes are: 1/4”, 5/16”, 3/8”, 7/16”, 1/2” and M5, M6, M8, M10, M12.
Each tool is made of heat-treated steel, offering increased strength and durability even under demanding conditions. The kit is ideal for restoring worn or damaged internal threads. The drills with a 135° cutting angle provide accuracy and ease in installing the helical inserts.
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.
