NEW YORK — Esco Tool Co. has launched a line of cutter blades for machining highly alloyed pipe that feature a proprietary chip-breaker design and a hard lube coating, the company said Jan. 16.

The Esco Millhog cutter blades, made from T-15 tool steel, are "ideal" for torched-off heavy-wall pipe made from P-91, super duplex stainless steel and other hard materials, the Holliston, Mass.-based company said.

The blades’ radical chip breaker gets under the material being machined, directing heat away from the pipe, while the hard lube coating adds lubricity and extends blade service life, Esco said.