Chicago-Latrobe 53144 11/16 in 118 Degree Taper Shank Drill Bit

Chicago-Latrobe 53144 Drill Bit

This Chicago-Latrobe 53144 drill bit is a general-purpose cutting tool designed for machinists and maintenance technicians. It is manufactured from high speed steel to provide a balance of hardness and toughness for standard drilling operations. The taper shank design allows for direct mounting into compatible machine spindles or sleeves. It suits workshop tasks requiring a reliable 11/16 inch hole diameter.

11/16 inch capacity and application limits

The bit drills a precise 11/16 inch diameter hole suited for general-purpose metalworking in ferrous and non-ferrous materials. Its high speed steel construction offers adequate wear resistance for moderate production runs and maintenance work. The tool runs out in high-volume production or when drilling abrasive alloys that demand cobalt or carbide substrates for extended life. It is not for buyers who need larger diameters or specialised coatings for exotic materials.

118 degree conventional point geometry

The 118 degree conventional point angle is the critical specification determining suitability for standard drilling tasks. This geometry centres easily without a pilot hole and performs reliably across common steels and cast iron. A different point angle would be required for hard materials or deep-hole drilling where chip evacuation and thrust force differ. The black oxide finish adds lubricity and corrosion resistance during use.