Chicago-Latrobe 54064 11/32 in 135° Cobalt TiN Split-Point Drill Bit

Chicago-Latrobe 54064 11/32 in Cobalt Drill Bit

This Chicago-Latrobe 54064 drill bit is a jobber-length cutting tool made from cobalt steel with a titanium nitride coating. It suits metalworkers and maintenance technicians who need a durable bit for drilling hard materials such as stainless steel or cast iron. The 11/32 inch size covers a common clearance-hole requirement in automotive and fabrication shops.

135° Split-Point Geometry Reduces Walking

The 135 degree split point is designed to start on contact without a centre punch, helping the bit stay on target during hand-held or drill-press use. Cobalt construction resists heat buildup, but excessive feed pressure or insufficient lubrication can still chip the cutting edges. The TiN coating lowers friction, yet it will wear away if the bit runs dry at high speed.

Sustained Drilling in Tough Alloys

Under continuous load the cobalt substrate retains hardness better than standard high-speed steel, allowing longer cuts before re-sharpening. Heat accumulates in deep holes because the bit has no coolant-through channels, so periodic withdrawal is necessary to clear chips and let the tip cool. The coating delays galling, but material adhesion increases once the surface layer is gone.