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The VALUE COLLECTION 08906281 is a counterbore pilot used to guide counterbore cutting tools during machining operations. It fits into the counterbore body and aligns the tool concentrically with a pre-drilled pilot hole, ensuring accurate seat depth and consistent results. The pilot features a 7/16 inch head diameter and a 5/16 inch shank diameter. Constructed from carbon steel with a bright uncoated finish, it is suited for general-purpose shop use. Machinists and tool-and-die professionals install this type of pilot when switching between counterbore sizes or replacing worn pilots in existing counterbore sets.
Counterbore pilots are used in machine shops, manufacturing facilities, and maintenance environments where fastener seats must be cut to precise depths. This pilot is appropriate for use in bench-top drill presses, milling machines, and similar equipment where counterboring operations are performed on ferrous and non-ferrous workpieces. Sold individually, it is a direct replacement component for counterbore sets requiring a pilot of matching head and shank dimensions.
Designed as a replacement counterbore pilot for tool bodies accepting a 5/16 inch shank and a 7/16 inch head diameter. Verify counterbore body pilot bore dimensions before installation.
A qualified machinist should install this pilot using the appropriate counterbore body per the tool manufacturer's instructions. Ensure the machine spindle is fully stopped and the tool is secured in the holder before inserting or removing the pilot. Inspect the pilot shank and counterbore body bore for wear or damage before each use. Do not force a pilot into a body with a mismatched bore diameter.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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