5/8" (.625") 4 Flute HSS Reverse Spotfacer .031" Radius 190-7J
3/8" (.375") 4 Flute HSS Reverse Spotfacer 3/16" Pilot Hole 190-3L
9/16" 4 Flute HSS Reverse Spotfacer .031" Radius 190-6L