Chicago-Latrobe 44930 15/32" Cobalt Drill Bit 135° Split Point TiAlN

Cobalt Jobber Drill Bit

The Chicago-Latrobe 44930 is a 15/32 inch cobalt drill bit built for jobber-length drilling tasks. Its 135-degree split-point geometry reduces walking and starts holes cleanly in metal workpieces. A TiAlN coating adds surface hardness and heat resistance for longer tool life. The bit suits maintenance, fabrication and general workshop use.

Upgrade from standard high-speed steel

Cobalt alloy withstands higher drilling temperatures than conventional high-speed steel bits, keeping edges sharp in tough alloys and stainless steel. The split point eliminates the need for centre punching in most materials, saving setup time. The TiAlN layer further extends intervals between resharpening. The jump pays off when drilling work-hardening metals or running repeated holes in production.

For machinists and maintenance teams

This bit fits machinists who need reliable performance in ferrous metals and high-temperature alloys without coolant-through capability. Shops drilling deep holes requiring internal coolant delivery should select a coolant-through design instead. Users working primarily in wood, plastic or soft non-ferrous metals will find standard bits more economical.