Chicago-Latrobe 55462 118° 31/32 in Drill Bit 1/2 Reduced Shank

31/32 in drill bit with 1/2 reduced shank

This Chicago-Latrobe 55462 drill bit fits a 1/2 inch chuck despite its large 31/32 inch cutting diameter. It targets machinists and maintenance technicians who need to drill near-one-inch holes without a large-capacity drill press. The reduced shank design allows use on standard portable drills and bench-top machines.

118 degree point angle for general-purpose drilling

The 118 degree point angle is the critical specification that determines material suitability. This angle performs reliably in mild steel, cast iron and similar ferrous metals. It is not optimised for hard alloys or non-ferrous materials where a split point or different angle would reduce walking and heat buildup.

High speed steel body with black oxide finish

The high speed steel construction provides wear resistance for repetitive holemaking in machine-shop environments. Black oxide finish adds lubricity and corrosion protection during extended use. The bit handles standard production drilling in ferrous metals but lacks the cobalt content or specialised geometry needed for stainless steel or high-temperature alloys.