300 series hole sizes - UK Vintage Radio Repair and Restoration Discussion Forum

giraffenigel · 2nd Jun 2016, 8:24 am

Does anyone know the the 2 drill bit sizes for the button holes on the top of 300 series telephones? I had them years ago from a thread on here for a 328 and bought the appropriate size bits, converted a 332 shell to a 328 successfully but since moving house I can't find them or the original thread!
I do remember they were very odd sizes and quite expensive - I must have put them somewhere "safe"
Many thanks

2nd Jun 2016, 8:24 am	#1
giraffenigel Tetrode Join Date: Feb 2009 Location: Caernarfon, Gwynedd, UK. Posts: 51	300 series hole sizes Does anyone know the the 2 drill bit sizes for the button holes on the top of 300 series telephones? I had them years ago from a thread on here for a 328 and bought the appropriate size bits, converted a 332 shell to a 328 successfully but since moving house I can't find them or the original thread! I do remember they were very odd sizes and quite expensive - I must have put them somewhere "safe" Many thanks