The Patriot chuck is manufactured in Sheffield and you can rest assured that the engineering quality is as high as you would expect from any Robert Sorby product together with an unrivalled guarantee of service and commitment from all Robert Sorby staff. Powerful grip both ways. 25mm jaw movement. Easy one-handed tightening with T bar Excellent range of inter-changeable screw-on jaws. Also takes Nova jaws and threaded inserts Remove jaws to reveal the jaw sliders which can grip tiny round or square objects Compact for low overhang. Body is 100mm diameter. Self-centering jaws. Enclosed gears. Lightweight. Interchangeable threaded inserts to fit most lathes. Please specify thread fitting required. Thread insert is included in the price.