ASNOMY 6-11/16Inch Extra Long Forstner Bit Extension for Adding Over 5-3/8 inches of Drilling Depth to Your 2/5" Round or Hex Shafts Forstner Bit

• 👷Extends any Forstner shank bit an additional 5-3/8 inches, Helps you use standard forstner drill bits drilling for flat bottom holes or start deep hole turning projects like on larger vases or containers;
• 👷The collet inside diameter is 2/5 inch(10.5mm). This tolerance is very tight and designed to accept forstner bits with shank sizes of 2/5inch or slightly smaller;
• 👷High-carbon steel construction, precision ground and polished, ensuring it's sturdy and durable;
• 👷Two set screws and hex key included. To fasten the shank in place, use the hex key to tighten these screws;
• 👷Hex Shank Dia.: 3/8-inch, Total length: 6-11/16 inch, Extend Length: 5-3/8 inch.

Feature: 1)The forstner bit extension gives you additional 5-3/8 inches of reach to bore deeper into your projects. 2)The collet inside diameter is 2/5 inch(10.5mm),designed to accept forstner bits with shank sizes of 2/5inch or slightly smaller; Specification: Material: High-carbon steel Shank Dia.: 3/8-inch; Extend Length: 5-3/8 inch; Total length: 6-11/16 inch. Package: 1x Forstner bit Extension 1x Hex Key