Chicago-Latrobe 70232 118° 1/2 in Jobber Drill Bit

1/2 inch jobber drill bit

This Chicago-Latrobe 70232 bit is a general-purpose cutting tool sized at 1/2 inch with a 118-degree conventional point. It is made from high-speed steel with a TiN coating for extended life. The fractional inch size suits maintenance, fabrication and automotive repair tasks. Builders needing a standard length bit for portable or stationary drilling will find it appropriate.

Sustained drilling behaviour

The high-speed steel body resists softening when heat builds up during continuous cutting. TiN coating reduces friction so the edge stays sharper longer under repeated feed pressure. The 118-degree point centres quickly without walking, helping maintain accuracy across multiple holes. Workpieces that generate heavy swarf may require frequent withdrawal to clear chips.

Practical limits of the shank interface

The straight shank fits standard three-jaw chucks up to their maximum capacity, so the bit cannot be used in collets or SDS holders without an adapter. Decimal equivalent .5000 confirms the nominal diameter for tight-tolerance work. Non-coolant-through design means flood or mist coolant must be applied externally. Users needing through-spindle delivery or larger diameters must select a different tool.