Tools for the Workshop

Particulars of an ingenious device for correcting worn or bell‐mouthed lathe chuck jaws have recently been released by Speed Tools Ltd. of Vereker Buildings, Gresse Street, London, W.1. This device, it is claimed, enables rectification to be carried out in such a manner that the jaws are accurately ground so that they will grip bar work over their full length—squarely and rigidly.