Chicago-Latrobe 54069 135 Degree Cobalt Jobber Drill Bit

Chicago-Latrobe 54069 Cobalt Jobber Bit

This Chicago-Latrobe 54069 drill bit is built for heavy-duty metalwork where standard high-speed steel wears too quickly. The cobalt alloy body resists heat and abrasion, while the 135-degree split point starts on contact and reduces wandering. It suits maintenance crews, fabricators and machinists who need reliable hole-making in tough alloys.

135-degree split point limits walk and heat

The 135-degree point angle is optimised for harder materials such as stainless steel and titanium, but it demands rigid setups and steady feed pressure. Hand-held drilling in thin sheet can cause chatter if the workpiece is not clamped. The split point geometry helps centring, yet it cannot compensate for excessive run-out or insufficient coolant in deep holes.

Half-inch capacity with TiN coating headroom

At 0.5000 inch diameter this bit handles the upper end of common jobber-length work, clearing chips through standard flutes without internal coolant passages. The TiN coating adds wear resistance for repetitive production runs, though the lack of through-coolant holes limits depth in high-temperature alloys. Users needing deeper holes or larger diameters will need a different tool style.