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Drill America
1/2"x1/4" Pilots for Counterbore
Mfr # DEWPIL1/2X1/4
Zoro # G1742879
product price: $6.25
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Key Features
- Bore Dia. 7/8"
- Overall Length 1-7/8"
- Shank Dia. 1/4"
- Shank Type Round
- Finish Uncoated (Bright)
Product Information
- Brand Drill America
- MFR # DEWPIL1/2X1/4
- Zoro # G1742879
- UPC # 887861164368
- Country of Origin China
- Category Counterbores
Dimensions
Bore Dia. | 7/8" |
Overall Length | 1-7/8" |
Shank Dia. | 1/4" |
Size- Decimal | 0.5 in |
Shank Size | 1/4" |
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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