Westward 5XL75 13/64" HSS Black Oxide 135° Jobber Drill Bit

13/64" HSS Jobber Drill Bit

This Westward drill bit is a 13/64 inch high-speed steel jobber length tool with a 135 degree split point and black oxide finish. It is designed for general-purpose drilling in metal, wood and plastic where a fractional inch size is required. The split point helps reduce walking and improves starting accuracy on contact.

Machinists and DIY users needing this exact

The bit suits professionals and hobbyists who need a 13/64 inch diameter hole for tapping, clearance or pilot work in ferrous and non-ferrous materials. It is not intended for coolant-through applications or for drilling hardened steels that demand cobalt or carbide tooling. Users requiring metric sizes or larger diameter jobber bits should select a different tool.

0.2031 inch diameter with jobber length flute

The decimal equivalent of 0.2031 inches provides a precise reference for hole tolerance calculations in fit-critical assemblies. Jobber length gives sufficient flute reach for standard through-hole and blind-hole depths in sheet metal, bar stock and plastic sheet. The high-speed steel construction with black oxide offers wear resistance for repetitive drilling, though the bit will dull faster in abrasive composites or high-alloy steels.