1/2 Carbide Square End Mill, HRC 45 Deg Single End 4 Flute AlTiN Coating Mill Bits. 4.5 out of 5 stars. 51. $27.50. $27. . 50. Above $40. Jarrow Tool Square End Carbide Mill Set (Pack of 5) - 1/4 End Mill for Alloy Steels/Hardened Metals – 4 Flute TiAlN Coated Square Nose Milling Set
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