hardinge 5c emergency collets pic # 1,3.355 od .750 thick # 2,2.375 od ,.750 thick, 1.600 id .280 deep ,second id 1.050 ,600 deep #3, 2.375 od .750 thick 1.650 id .350 deep #4,1.360 od .750 thick 1.4390 id .140 deep