1. Drilling is the first step when a helicoil insert is installed. Drill is the very tool.
2. Drill out the damaged threads using the standard drill to a sufficient depth in order to accommodate the helicoil insert length and the bolt or screw being used.
3. CLCOIL is a leading brand with its high quality and high precision. Its helicoil installtion tools conclude:
a. helicoil drill
b. helicoil tap
c. helicoil insert tool
d. helicoil tang break off tool
e. helicoil extractor
4. The12.4mm drill is used for drilling the hole of M12*1.75 helicoil inserts.
5.All kinds of threaded insert tools can supply.
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