DAYUAN 131pcs Helicoil Metric Thread Repair Kit, HSS Drill Insert Tool M5 M6 M8 M10 M12

This 131pcs thread repair kit is the perfect solution to a damaged or stripped tapped hole It's suitable for M5, M6, M8, M10 and M12, the kit creates a stronger internal thread in soft metals and protects tapped threads against wear and damage. This re-thread tool full set include: insert installations, wire thread inserts, twist drill bits, thread taps, lug breaking tools All tools were packed in a convenient steel carrying case, ease and fast in collecting and placing the tools. Coarse Thread Inserts Coil Size: M5x0.8x6.7 mm, M6x1.0x8.0 mm, M8x1.25x10.8 mm, M10x1.5x13.5 mm, M12x1.75x16.3 mm