Chicago-Latrobe 44924 135° Cobalt Jobber Drill Bit 3/8 in

Chicago-Latrobe 44924 Cobalt Jobber Drill Bit

The Chicago-Latrobe 44924 is a jobber length drill bit made from cobalt steel with a TiAlN coating. It features a 135-degree split point designed for self-centering and reduced thrust. The bit has a 3/8 inch diameter with a decimal equivalent of .3750. It is a non-coolant through tool with zero coolant holes.

Suited for hard metal drilling.

This bit suits machinists and maintenance technicians drilling into stainless steel, titanium and other hard alloys where cobalt heat resistance and the 135-degree geometry extend tool life. It is not suited for wood, plastic or soft aluminium where the aggressive split point can grab and the coating adds unnecessary cost. Buyers who need a coolant-through design for deep-hole chip evacuation should look at a different style.

135-degree split point geometry decides fit

The 135-degree split point is the specification that determines whether this bit matches the application. It changes the rake angle and web thickness compared with a standard point, so it requires a rigid setup and appropriate feed rates. If the machine or material calls for a different point angle, this drill will not perform as intended.