Commstones should be twice as long as the width of the longest flat spot and as long as will work freely between adjacent brush sets. When compared to turning tools commstones are easier to use, more time effective, and remove less copper.3 in X 2 in X 1-1/2 in, Commstone, Grade C With Adjustable Handle Stone is mounted on a short knob that allows for three different handle positions..
and 2-1/4 in. Designed to reinforce the entire installation by shiftingradial-stress load away from the NPT connections. Non-Stabilized Connector Pair, Steel Optional dielectric barrier creates a non-conductive shield betweenthe instrument and the orifice fitting.