An E-Z COIL is a helical stainless steel wire insert that is used to repair damaged threads in soft metarial. It can also be used to protect newly tapped holes from stripping and wear and is heat resistant up to 800*F. This is a pack of 3 inserts.
Please note that the height of the insert is designated in a diameter multiplier format e.g:
1D = 1 X DIAMETER
1.5D = 1.5 X DIAMETER
2D = 2 X DIAMETER