Attach these installation tips to a soldering iron. The tips transfer heat from the soldering iron to the insert, softening the surrounding plastic. When the plastic cools, it solidifies around the insert to keep it secure.

Assortments include various sizes of inserts, a soldering iron, a ceramic insulation tube, and installation tips.

The tapered shape makes it easier to guide these inserts into a hole during installation. Use a drill bit to create a straight hole, then taper the top half.

Quicker to install than standard heat-set inserts, these inserts go in either way—no need to check which end is correct.