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Drill America
31/64"x3/16" Pilot Hole HSS Straight Shank Counterbore
Mfr # DEWCBR31/64
Zoro # G1741628
$25.19
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Key Features
- Bore Dia. 31/64"
- Overall Length 4-5/16"
- Finish Uncoated (Bright)
- Shank Type Straight
- Size- Decimal 0.484375 in
Product Information
- Brand Drill America
- MFR # DEWCBR31/64
- Zoro # G1741628
- UPC # 887861129084
- Country of Origin China
- Category Counterbores
Dimensions
Bore Dia. | 31/64" |
Overall Length | 4-5/16" |
Size- Decimal | 0.484375 in |
Shank Size | 7/16" |
Details
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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