Mesee Helicoil Thread Repair Insert Kit Helical Coil Inserts M8 x 1.25mm Screw Tap Twist Drill Bit Screw Threads Installation Tool Lug Breaking-off Pin Rethread Repairing KitIt is a practical and handy tool set for restoring damaged or worn-out threads, perfect for automotive mechanics, handyman jobs, furniture assembly, and DIY home improvement projects. Ideal thread repair kit for repairing or replacing damaged or stripped Internal screw threads, and also can be used to protect aging screw threads from wear and tear, suitable for daily repair, engine repair, and other automotive applications. Operation Guide:1) DRILLING - Drill and clear the damaged thread with the twist drill. 2) CHECK - Check that the thread and pitch of the tap and of the bolt match.
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