A TCT saw blade mounted between two bosses (boss 80mm diameter) which tilt the blade so that it is able to cut a groove or housing to a pre-set width indicated on the scale on the block. The beauty of this system is that the width of cut is infinitely variable, e.g. if a panel is 6.7mm thick a groove of 6.8mm can be quickly set to make the panel an exact fit in the housing. 30mm bore. Maximum speed 4,000rpm. N.B. These wobble saws are intended for use on spindle moulders only.