Cutting Diameter Description Series Page Length .782 - .842 .39 - .42 Indexable Spotting Drill Using FAK (Triangle Insert) 490 Triangle Insert .685 - .761 .12 - .20 Indexable Spotting Drill Using FAK (Quad Insert) 491 Quad Insert .472 - .630 .08 - .31 Y 493 Replaceable Point Spotting Drills .188 - .472 24mm DR 494 - 60mm Solid Carbide Drills 5.79in - .250in - 10mm DRXL 497 225mm Solid Carbide Drills .2953 - 1.0197 .87 - 2.95 Y - 3:1 498 Replaceable Point Drills .2953 - 1.0197 1.46 - Y - 5:1 500 4.92 Replaceable Point Drills 3.150 - .3937 - 1.0197 7.870 Replaceable Point Drills Y - 8:1 502 .2953 - .8228 .81 - 2.50 Slip Fit Chamfer Shanks - (Straight MHK 504 Shanks w/Whistle Notch Flat) 1.020 - .2953 - .8228 Y - 3:5:1 506 2.600 Slip Fit Drills 478