Solid Carbide End Mills made by CID Performance Tool from Portland Maine.  These appear to be a custom made item, the part number is CIDPE 06-2-02-01006R.  Not sure if the R means they have been reground, check out the pictures, these look unused, but listing as refurbished. Please see pictures for measurements, don't know much about them other than what you see. FREE SHIPPING to save you money! Price is for the lot of 25, if you want to purchase fewer let me know and we can work out a price.