Re cuts the seats of worn taps or stopcocks without disconnection from the pipework. Parallel bushes for use where the internal thread will not allow the entry of tapered cones. For taps with recessed threads in body use parallel bush series. Cutters are case hardened feedscrew allows fine adjustment to the cutter. All parts are interchangeable. Fits in & 3/4 in. BS5412 bevelled seats. Complete with 1.20 mm. (11/16 in. 13/16 in. Bevelled Cutters. One double bush.