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7 Piece Winstar carbide end mill set. Special price while stocks last. Suitable for general machining of steels up to 55HRC Includes 3mm 4mm 5mm 6mm 8mm 10mm 12mm. $202.40. Add to Cart. 1mm ALUMINIUM BALL END MILL. 1mm 2 Flute Aluminium ball end mill. Cutting diameter 1mm Flute length 2mm Shank diameter 4mm Overall Length …