Page 19 of Gun Drills by Stock Precision Tools

carbide tbe-solid carbide head tbz-solid carbide head tbe-wp gun drill rbide 5,0 single-fluted gun drill solid carbide head 2,0 40,0 two-fluted gun drill solid carbide head 6,0 27,0 single-fluted gun drill with indexable inserts 16,0 40,0 >35×d 35×d >35×d vc m/min 95 80 85 75 85 75 70 70 60 75 70 60 70 60 70 60 50 60 50 40 35 25 20 30 80 75 75 65 50 30 25 140 115 140 120 70 115 85 90 70 65 55 70 65 55 45 feed col no nnnnmmmmmnmmmmllklmmmlkkoonnmkkppqqpnqqppppnnmm vc m/min 100 85 90 80 90 80 75 75 65 80 75 65 75 65 75 65 55 65 55 45 35 30 25 35 85 80 80 70 55 35 30 150 120 150 130 110 75 120 90 95 75 70 60 75 70 60 50 feed col no nnnnmmmmmnmmmmllklmmmlkkoonnmkkppqqpnqqppppnnmm vc m/min 95 80 85 75 85 75 70 70 60 75 70 60 70 60 70 60 50 60 50 40 35 25 20 30 80 75 75 65 50 30 25 140 115 140 120 70 115 85 90 70 65 55 70 65 55 45 feed col no mmmmlllllmllllkkkllllkkknnmmlkknnppomppoooommll recommended vc coating m/min 35×d >35×d feed col no vc m/min feed col no 85 80 75 70 65 120 110 135 120 130 120 110 110 95 95 rrqqprrrqrrqqqq 80 75 70 65 60 115 105 130 115 125 115 105 105 90 90 qqppoqqqpqqpppp recommended vc coating m/min 90 tin 80 85 tin 75 85 80 tin 75 tin 75 65 80 tin 75 tin 70 70 60 65 60 55 65 50 45 40 30 25 25 85 tin 80 75 tialn 70 tialn 55 35 tin 30 tialn 140 tialn 125 170 tialn 140 115 tialn 75 120 tin 90 95 tin 75 70 tin 60 75 70 60 fire 50 35×d >35×d feed col no ooppoooooooooonnnonnnmlmppppomlppqqpoqqqqqqppoo vc m/min 85 75 80 70 80 75 70 70 60 75 70 65 65 55 60 55 50 60 45 40 35 25 20 20 80 75 70 65 50 30 25 135 120 165 135 110 70 115 85 90 70 65 55 70 65 55 45 feed col no ooppoooooooooonnnonnnmlmppppomlppqqpoqqqqqqppoo gun drill 19

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