A HeliCoil is a coiled-wire type of thread repair insert used to create internal screw threads to accommodate standard-sized fasteners.
We carry kits, which include drill, tap, insert tool and coils, in UNC 1/4″ to 3/4″. UNF 3/16″ to 1/2″. Metric coarse M4 to M20 and Metric fine from M8 to M16. BSW in 1/2″.
Spark Plug Repair kits in M14 and M12.
Replacement Coil packs of 10 in 1.5D and 2D (1.5 x diam and 2 x diam lengths).