US$ 24.00
Overall Length: 6"
8 Hex Flange Bolts DIN 6921 Zinc Yellow
- High Grade Aluminum Die Cast Housing
Tap Drill Size 1-23/32"
Shape Roughing
23/64" X 3/32" Pilot Hole HSS Straight Shank Counterbore Quantity:1 Overall Length: 6"Product 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
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