( 1 ) NEW HERTEL INDEXABLE SQUARE SHOULDER FACE MILL..2-1/2" CUTTING DIAMETER..(HMC422R-2.50.06-15-200) HERTEL MPN: 6000354..MAXIMUM DEPTH OF CUT: 0.551"..OVERALL HEIGHT: 2"..ARBOR HOLE:1"...MAXIMUM RPM: 18,640..INSERT STYLE XD..15..NUMBER OF CUTTER INSERTS: 6..LEAD ANGLE:0/90...SERIES HMC: 422...