Bridgeport No. 4 right angle attachment
Bridgeport Millers Collets & Adaptors The N-2 collet will not fit in my right angle attachment...the bore is much smaller then the N-2. The large end opening on the bore measures about 0.500". JRIowa Diamond. Joined May 27, 2003 Location Marshalltown, Iowa, USA. Jun 15, 2011 #2