This is my first use of lever clamps after decades of using star/ball/etc. Grips through the slots on the threaded rod. While the grip/handlebar solution has uses, I'd probably go with these clamps if the solution could call for both. I use them to hold my router fence in place and they are great. I installed them parallel to the fence on blocks a little thinner than the countertop. They securely fix the fence without much effort in installation and use. The four bolt holes have a little play for installation and the clamp bolt can be moved back and forth only requiring tightening when needed - 10mm will fit and use an adjustable wrench on an alternative nut.