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HIGH SPEED STEELMORSE TAPER SHANK PILOTEDCOUNTERBORES◆ Soft to Medium Hardness Materials◆ For Use With 1960 SeriesSocket Head Cap Screws◆ High Speed Steel◆ 20° Right Hand Helix, Right Hand Cut◆ Cutting Diameter Tolerance is +.001/-.000◆ Pilot Diameter Tolerance is +.000/-.001(Former List Number 1476)Pilot Cutter For U.S.S. Morse Overall EDP No.Dia. Dia. Cap Screw Taper Length Uncoated.3095 .4738 5/16 1 6 56431.3251 .4844 5/16 1 6 56433.3408 .5050 5/16 1 6 56434.4345 .6612 7/16 2 7 56443.4657 .6925 7/16 2 7 56446.6200 .9425 5/8 3 8-1/4 56455.6512 .9738 5/8 3 8-1/4 56456.6825 1.0050 5/8 3 8-1/4 56457.7762 1.1612 3/4 3 8-13/16 56460.8075 1.1925 3/4 3 8-13/16 56461.9012 1.3488 7/8 3 8-13/16 564641.0262 1.5360 1 3 8-13/16 564681.0575 1.5680 1 3 8-13/16 56469MORSE TAPER SHANK PILOTEDCOUNTERBORES◆ Soft to Medium Hardness Materials◆ For Use With 1936 SeriesSocket Head Cap Screws◆ High Speed Steel◆ 20° Right Hand Helix, Right Hand Cut◆ Cutting Diameter Tolerance is +.001/-.000◆ Pilot Diameter Tolerance is +.000/-.001HSS Miscellaneous Cutters(Former List Number 1479)Pilot Cutter For U.S.S. Morse Overall EDP No.Dia. Dia. Cap Screw Taper Length Uncoated.2470 .3800 1/4 1 5-3/4 56625.2626 .3956 1/4 1 5-3/4 56627.2782 .4112 1/4 1 5-3/4 56628.3095 .4425 5/16 1 6 56631.3251 .4581 5/16 1 6 56633.3408 .4738 5/16 1 6 56634.3720 .5675 3/8 1 6-1/2 56637.3876 .5831 3/8 1 6-1/2 56639.4032 .5988 3/8 1 6-1/2 56640.4345 .6300 7/16 2 7 56643.4658 .6612 7/16 2 7 56646.4960 .7550 1/2 2 7-1/4 56649.5116 .7706 1/2 2 7-1/4 56651.5272 .7862 1/2 2 7-1/4 56652.5585 .8175 9/16 2 7-1/2 56653.6512 .9112 5/8 3 8-1/4 56656.7450 1.0050 3/4 3 8-13/16 56659.7762 1.0362 3/4 3 8-13/16 56660.8075 1.0675 3/4 3 8-13/16 56661.9950 1.3175 1 3 8-13/16 5666755