Chicago-Latrobe 42621 135 Degree Heavy-Duty Jobber Length Drill Bit 21/64 in

Chicago-Latrobe 42621 Drill Bit

The Chicago-Latrobe 42621 is a heavy-duty jobber length drill bit designed for general-purpose drilling tasks. It features a 135-degree split point made from High Speed Steel with a TiAlN coating for wear resistance. This bit suits machinists and maintenance technicians who need reliable fractional-inch tooling.

Suits precise fractional drilling.

This bit suits users who require a 21/64 inch fractional size with a split point for accurate starting and reduced walking. The decimal equivalent is .3281 inches. Builders who need through-coolant capability or multiple coolant holes should look at different tooling, as this bit has zero coolant holes and is non-coolant through.

135-degree split point geometry decides fit

The single specification that decides whether this is the right part is the 135-degree split point geometry. This angle and point type combination centres the bit quickly in steel and other hard materials without a pilot hole. If your application demands a different point angle or a standard chisel point, this bit will not meet that requirement.