Chicago-Latrobe 52455 55/64 in HSS drill bit 118° point black oxide

Chicago-Latrobe 52455 55/64 in HSS drill bit

This high-speed steel drill bit features a 55/64 inch diameter and a 118-degree point angle for general-purpose drilling. The black oxide finish adds corrosion resistance and reduces friction during operation. It is designed for machinists and maintenance professionals who need a reliable reduced-shank bit for metalworking tasks. The 52455 model fits standard chucks while providing the reach of a larger cutting diameter.

Replaces worn or undersized bits when a 55/64

Switch to this bit when a smaller drill cannot achieve the final diameter or when an old bit no longer cuts cleanly in steel. The HSS construction handles the heat of repeated use in ferrous materials better than carbon steel alternatives. The jump is worth it when hole accuracy and tool life matter more than the lowest upfront cost. It is not for buyers who need a split-point design for self-centering without a pilot hole.