43mm Drill Bits
These jobbers'-length bits have the rigidity and length required for most applications. The flutes are designed to lift chips out of the hole, reducing clogging and improving coolant flow.. Parabolic spiral flute drill bits have wider flutes for more efficient chip evacuation than spiral-flute bits.. Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than ...
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