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BOSCH CO2147B 1-Piece 5/16 In. x 4-1/2 In. Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum - Amazon.com
73470 Norseman 187DN Weldout Spotweld M42 Cobalt Drill Bit, 8.0 TE* mm, Spur Point [NDT-73470] : Spot Weld Drill Bits - $32.44 EMI Supply, Inc
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STROTON Metric M42 8% Cobalt Drill Bits Independent Packaging of Each Specification for Stainless Steel and Hard Metal (2.0mmx5pcs) - Amazon.com
1/16 - 1/2 Cobalt Jobber Drill Bit Set, Shatter Proof Case, 29 Pieces (1/64 Increments), Drill America | D/A29J-CO-PC | DrillsandCutters.com
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BOSCH 14-Piece Cobalt M42 Metal Drill Bit Set for Drilling Stainless Steel, Cast Iron, Titanium, Light Metal - Amazon.com
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