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  11. 3/8"x5/32" Pilot Hole HSS Straight Shank Counterbore
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Drill America

3/8"x5/32" Pilot Hole HSS Straight Shank Counterbore

product price: $21.19
/ea
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Key Features

  • Bore Dia. 3/8"
  • Overall Length 4-1/16"
  • Size- Decimal 0.375 in
  • Finish Uncoated (Bright)
  • Shank Type Straight
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Product Information

Dimensions

Bore Dia. 3/8"
Overall Length 4-1/16"
Size- Decimal 0.375 in
Shank Size 5/16"

Details

Finish Uncoated (Bright)
Shank Type Straight

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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