This is the most convenient and versatile solution to changing the bit-hole diameter in all JessEm router plates and lift systems. Molded from glass filled poly-carbonate for long life and durability and featuring JessEm's innovative tab-loc design.

You can install and remove our insert rings with a quick turn of our two-prong insert ring wrench

2-1/2" plastic insert ring for use with all JessEm Lifts