Chicago-Latrobe 50740 118 Degree Heavy-Duty Extra Long Drill Bit

Chicago-Latrobe 50740 5/16 Inch Extra Long Drill Bit

This Chicago-Latrobe 50740 drill bit is a heavy-duty cutting tool designed for deep-hole drilling tasks. It features a 5/16 inch fractional size and an extra-long body that achieves a maximum drilling depth of 9 inches. The high-speed steel construction with a black oxide finish provides durability for general-purpose machining applications.

Suited for deep drilling in general-purpose

Machinists and maintenance technicians who need to reach deep cavities in standard ferrous and non-ferrous metals will find this bit suitable. The 118-degree notched point offers reliable starting on flat surfaces. Buyers who require a split point for self-centring on curved stock or a specialised coating for high-temperature alloys should evaluate alternative geometries.

118-degree notched point angle determines start

The 118-degree point angle with a notched profile is the critical specification governing how the bit engages the workpiece. It centres adequately on flat surfaces but lacks the self-centring action of a split-point design. Select this bit when the application matches this specific point geometry.