... for higher feed rates.Center CuttingMaterial: M42 8% CobaltPacking: Wooden caseM42 Single end mill set detail:PiecesFluteDescriptionOrder No.202&41 each of ... &41 each of 1/4,3/8,1/2,5/8,3/4723-0003M42 Double End Mill Set detail:PiecesFluteDescriptionOrder No.202&41 ... /4by 16ths723-9002102&41 each of 1/4,3/8,1/2,5/8,3/4723-9003 M42 8% Cobalt End Mill Sets