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Drill America

1/4"x5/32" Pilots for Counterbore

product price: $7.99
/ea
Sold in multiples of 2 for $15.98
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Key Features

  • Bore Dia. 1-1/2"
  • Overall Length 1-1/2"
  • Shank Dia. 5/32"
  • Shank Type Round
  • Finish Uncoated (Bright)
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Product Information

Dimensions

Bore Dia. 1-1/2"
Overall Length 1-1/2"
Shank Dia. 5/32"
Size- Decimal 0.25 in
Shank Size 5/32"

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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