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DEWALT 3/16-in 29Mm Titanium Nitride Coated Hss Jobber Length Twist Drill Bit in the Twist Drill Bits department at Lowes.com
1PC 1/2 M35 28mm 28.5mm 29mm 29.5mm 30mm 30.5mm Cobalt twist drill small handle bit high speed steel handle twist drill - AliExpress
Auniwaig 29mm Reduced Shank Drill Bit, High Speed Steel Black Nitride Coated Finish with 1/2 Inch Straight Shank, for Iron, Cooper, Aluminum Plate, Metal - Amazon.com
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Auniwaig 29mm Reduced Shank Drill Bit, High Speed Steel Black Nitride Coated Finish with 1/2 Inch Straight Shank, for Iron, Cooper, Aluminum Plate, Metal - Amazon.com