DORMER Taper Length Drill Bits

A940 and A941 heavy-duty taper length drill bits designed to reduce thrust requirements in old-style wood screws. Feature spiral flutes in the size range 29 - 166 mm

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StyleModelDecimal EquivalentFlute LengthOverall LengthSizeMaterialFinishGradePoint TypePrice
AA94111/640.172"86 mm146 mm0.172"High Speed SteelAlCrNHeavy DutyNon Conventional Point€38.05
AA9413/160.188"86 mm146 mm0.188"High Speed SteelAlCrNHeavy DutyNon Conventional Point€41.49
AA9411/21/2"121 mm197 mm1/2"High Speed SteelAlCrNHeavy DutyNon Conventional Point€172.40
AA9411/41/4"95 mm156 mm1/4"High Speed SteelAlCrNHeavy DutyNon Conventional Point€53.39
StyleModelDecimal EquivalentFlute LengthOverall LengthDimension TypeSizes IncludedSizeMaterialFinishPrice
AA9403/640.047"29 mm57 mmFractional Inch-0.047"High Speed SteelBright€23.43
AA9405.00.197"87 mm132 mmMetric--High Speed SteelBright€16.15
AA9409.70.382"121 mm184 mmMetric9.7-High Speed SteelBright€66.26
AA94010.00.394"121 mm184 mmMetric10-High Speed SteelBright-
RFQ
AA94010.50.413"121 mm184 mmMetric10.5-High Speed SteelBright-
RFQ
AA94027/640.422"117 mm184 mmFractional Inch-0.422"High Speed SteelBright€97.14