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5/16" HSS Black & Gold KFD Split Point Jobber Length Drill Bit, Killer Force Drill Bit | KFD5/16 | DrillsandCutters.com
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UNJC Minor Ø Recommended Drill Size Ø Pitch (TPI) Min Max Drill Size Decimal (in) #4 40 .0877 .0942 2.30mm .0906 #5 40 .1007 .
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Century Drill & Tool 9 mm x 1.0 Metric Tap & 5/16 In. Brite Drill Bit Combo Pack - Taylor's Do it Center
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