131pc Thread Repair Tool Helicoil Metric Rethread M5 - M12 Stainless Steel TE850

M5 - M12 thread repair set. - M12 x 1.75 x 16.3mm ( x 22 inserts ). - M5 x 0.8 x 6.7mm ( x 22 inserts ). - Check that the thread and pitch of the tap and the bolt match. - Install the insert place insert on installation tool and position the adjustable ring so that the insert tang is centred in the tang slot.

eBay