1/4"-28 shaft thread.

Positive adjustment lock.

Undercut body diameter provides faster chip ejection.

Designed for close tolerance work & to eliminate sheet damage.

Two flute, high speed steel construction with a 100° cutting angle.

Single cutting edge for fast stock removal & chatter free finish in all materials.

Solid M42 cobalt construction for use on harder materials.

Three flute, 100° countersink angle standard.

Integral Pilot 1/4-28 Thread, 100° Cobalt