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Straight flute drill, non-standard alloy straight flute drill, carbide straight flute drill: Suitable for machining gray cast iron, ductile iron, copper, aluminum and other materials. Strong self-centering capability, stable dimensional accuracy and good surface quality. Solid carbide straight flute drill: Suitable for cast iron, aluminum and other silicon chip material, excellent self-centering capability; applied to ordinary steel, quenched and tempered steel, stainless steel, cast iron, aluminum and the like. Selection of ultrafine particles of hard aluminum alloy titanium coating. Custom straight flute drill came to our good tools, a variety of professional custom straight flute drill. Welcome to map custom.