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  11. 9/16"x1/8" HSS Aircraft Counterbore 1/4" Shank
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Drill America

9/16"x1/8" HSS Aircraft Counterbore 1/4" Shank

product price: $30.19
/ea
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Key Features

  • Bore Dia. 9/16"
  • Overall Length 2-13/16"
  • Shank Type Round
  • Finish Uncoated (Bright)
  • Size- Decimal 0.5625 in
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Product Information

Dimensions

Bore Dia. 9/16"
Overall Length 2-13/16"
Size- Decimal 0.5625 in
Shank Size 1/4"

Details

Shank Type Round
Finish Uncoated (Bright)

Description

Counterboring is the enlargement of a portion of a hole that has previously been formed. If the counterbored portion is shallow (1/8" or less), the operations is usually known as spot-facing; for example, a flat seat for a bolt head or nut. If, on the other hand, the hole is enlarged to a considerable depth, it is designated as counterboring. These counterbores are made of two-piece construction, having an integral shank and counterbore-cutter, and a pilot that is interchangable, which provides flexibility in the use of the tool.

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