If you need to make up jigs for routing or sawing operations, then this is one potential kit for you. It contains a comprehensive selection of 1/4" UNC knobs and fittings, both male and female, which offers a wide range of jig making solutions. Kit contains 10 x 90mm tee bolts, 10 x 65mm tee bolts, 20 x 40mm tee bolts, 20 x 25mm tee bolts, 26 female knobs in various sizes, 10 male knobs with 25mm threaded rod, 20 x 16mm diameter washers with 6mm hole, 16 x screw in threaded inserts, 16 x spiked nut inserts. A sturdy case keeps everything together for convenience. N.B. All fittings are threaded 1/4" UNC. We also sell a 6mm Metric Thread kit, item No. 103409