Square End Mills Imco 27/64 4FL SC SQ ALTIN END MILL 27/64 4FL SC SQ ALTIN END MILL 31028 truCore tru-Core Cutting Diameter 27/64 inch Connection Diameter Machine Side 27/64 inch Depth of Cut Maximum 1 inch Usable Length 41 mm Overall Length 2-3/4 inch Flute Count 4