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Drill America
5/16"x3/32" Pilot Hole HSS Straight Shank Counterbore
Mfr # DEWCBR5/16
Zoro # G1739415
product price: $20.59
/ea
$20.59
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Key Features
- Bore Dia. 5/16"
- Overall Length 3-13/16"
- Shank Type Straight
- Finish Uncoated (Bright)
- Size- Decimal 0.3125 in
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Product Information
- Brand Drill America
- MFR # DEWCBR5/16
- Zoro # G1739415
- UPC # 887861128971
- Country of Origin China
- Category Counterbores
Dimensions
Bore Dia. | 5/16" |
Overall Length | 3-13/16" |
Size- Decimal | 0.3125 in |
Shank Size | 19/64" |
Details
Shank Type | Straight |
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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