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Drill America
5/16"x1/4" Pilots for Counterbore
Mfr # DEWPIL5/16X1/4
Zoro # G1746710
Sold in multiples of 2 for $11.18
$11.18
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Key Features
- Bore Dia. 5/16"
- Overall Length 1-7/8"
- Shank Dia. 1/4"
- Finish Uncoated (Bright)
- Shank Type Round
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Product Information
- Brand Drill America
- MFR # DEWPIL5/16X1/4
- Zoro # G1746710
- UPC # 887861163996
- Country of Origin China
- Category Counterbores
Dimensions
Bore Dia. | 5/16" |
Overall Length | 1-7/8" |
Shank Dia. | 1/4" |
Size- Decimal | 0.3125 in |
Shank Size | 1/4" |
Details
Finish | Uncoated (Bright) |
Shank Type | Round |
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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