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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StyleModelFlute LengthDrill Bit SizeDecimal EquivalentDimensions TypeDrill Bit Dimension TypeSizeGradeMaterialPrice
AA9403/6429 mm3/64"0.0469Fractional InchFractional Inch0.047"Heavy DutyHigh Speed Steel€28.45
AA9405.087 mm5 mm0.1969MetricMetric-Heavy DutyHigh Speed Steel€19.61
AA94027/64117 mm27/64"0.4219Fractional InchFractional Inch0.422"Heavy DutyHigh Speed Steel€117.95
AA9409.7121 mm9.7 mm0.3819Metric--Heavy DutyHigh Speed Steel€80.46
AA94010.0121 mm10 mm0.3937Metric--Heavy DutyHigh Speed Steel-
RFQ
AA94010.5121 mm10.5 mm0.4134Metric--Heavy DutyHigh Speed Steel-
RFQ
StyleModelFlute LengthDrill Bit SizeSizeDecimal EquivalentGradeMaterialFinishPoint AnglePrice
AA9413/1686 mm3/16"0.188"0.1875Heavy DutyHigh Speed SteelAlCrN130°€50.38
AA94111/6486 mm11/64"0.172"0.1719Heavy DutyHigh Speed SteelAlCrN130°€46.20
AA9411/495 mm1/4"1/4"1/4"Heavy DutyHigh Speed SteelAlCrN130°€64.84
AA9411/2121 mm-1/2"1/2"Heavy DutyHigh Speed SteelAlCrN130°€209.35