Chicago-Latrobe 44193 HSS drill bit 118° .3860 black/gold

Chicago-Latrobe 44193 HSS drill bit

This Chicago-Latrobe 44193 drill bit is a jobber-length cutting tool made from high-speed steel with a black oxide finish. It features a conventional 118-degree point angle and a decimal size of .3860 inch. The bit is designed for general-purpose drilling in metal, wood and plastic. It suits both professional mechanics and DIY users who need a reliable replacement bit.

Suited for general workshop drilling tasks

The bit suits machinists and maintenance technicians who need a standard high-speed steel jobber bit for handheld or press drilling. The 118-degree point works well in mild steel, aluminium and non-ferrous materials. Builders who need cobalt alloy for hardened steel, carbide-tipped bits for abrasive composites, or coolant-through capability for deep-hole production should look at something else. The letter-size .3860 diameter also limits use to that specific hole requirement.

Consistent wear resistance under sustained cutting

High-speed steel construction maintains hardness during extended drilling cycles, preventing rapid dulling when feed rates are correct. The black oxide surface reduces galling and helps retain lubricant during repeated passes. Under continuous load the conventional 118-degree point distributes cutting forces evenly, avoiding the chipping seen on aggressive split-point designs. Heat builds gradually in the flute rather than at the tip, giving predictable tool life across a full shift.