JessEm 02025 4-Piece Tab-Loc Insert Ring Set<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>4-piece Tab-Loc insert ring set</li><li>Easily change the bit hole diameter in your JessEm router plate</li><li>Precision machined from solid 1/4-inch thick phenolic; pre-drilled center holes of 1/4， 1/2， 1-3/8 and 2-1/2-inch diameters</li><li>Designed to be used in JessEm Tool router table insert plates and router lifts</li><li>3.8 by 3.8 by 1 inches; weighs 8 ounces</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31Kt6YEeSrL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/415wDVC8-vL.jpg" noproxy>