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Co-Bore, 3/16" Min. Bore, 15/16" Bore Depth, 3/8" Shank


Price: $13.90
Item Number: COA3L
Manufacturer: APT - Made in USA
Manufacturer Part No: COA3L
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Made in USA by APT
Co-Bore Premium Cobalt Boring Bar

Minimum Bore: 3/16"
Bore Depth: 15/16"
Overall Length: 2-3/16"
Shank Diameter: 3/8"


Made of premium cobalt high speed steel in a one piece construction, these boring bars may also be modified to a special grooving tool to produce various internal shapes and radii.  Cobalt is an ideal tool material because of its high red hardness, abrasive resistance and ability to maintain a sharp edge.  In addition, cobalt is used successfully to significantly extend tool life.

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