S545R-0.500-D1-R020.0-Z5 ALTIN SECO NIAGARA CUTTER 17007027 ELITE S545R CENTER CUTTING HIGH PERFORMANCE SINGLE END STUB LENGTH END MILL 1/2 IN DIA CUTTER 0.02 IN CORNER RADIUS 5/8 IN LENGTH OF CUT 5 FLUTES 1/2 IN DIA SHANK 2-1/2 IN OAL ALTIN COATED