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 the body use the parallel bush series. Cutters are case hardened & the feedscrew allows fine adjustment to the cutter with all parts are interchangeable. Fits 1/2 in. & 3/4 in. BS1010 new series & BS5412 Flat & Bevelled seats. Complete with 17 19 20 25 mm. (11/16 in. 3/4 in. 13/16 in. 1 in.) flat cutters & 11/16 in. 13/16 in. (1720 mm.) Bevelled Cutters. Two double bushes.