7-Inch Forstner Bit Extension for 3/8 Shaft, Adds 5¾ Inches of Depth

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Extend any Forstner bit shank an additional 5-3/4 inches to drill flat-bottom holes more efficiently. This product is perfect for starting deep hole turning projects on larger vases or containers.

The collet inside diameter measures 3/8 inch (9.7mm), a tight tolerance designed to fit Forstner bits with shank sizes of 3/8 inch or slightly smaller.

Crafted from high-carbon steel, this tool is precision ground and polished for durability and sturdiness. It comes with two set screws and a hex key to secure the bit in place.

Key specifications include a hex shank diameter of 3/8-inch, a total length of 7 inches, and an extendable length of 5-3/4 inches.