ASNOMY 2Pcs 4.5" & 7" Extra Long Forstner Drill Bit Extension for Adding Over 3-1/4" & 5-3/4" of Drilling Depth to Your 3/8" Round or Hex Shafts

ASNOMY 2Pcs 4.5" & 7" Extra Long Forstner Drill Bit Extension for Adding Over 3-1/4" & 5-3/4" of Drilling Depth to Your 3/8" Round or Hex Shafts

👷Extends any Forstner bit shank an additional 3-1/4" & 5-3/4" 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 3/8 inch(9.7mm). This tolerance is very tight and designed to accept forstner bits with shank sizes of 3/8 inch 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: 4.5inch & 7inch, Extend Length: 3-1/4" & 5-3/4" inch. Feature:
1)The forstner bit extension gives you additional 3-1/4 inches & 5-3/4 inches of reach to bore deeper into your projects.
2)The collet inside diameter is 3/8 inch(9.7mm),designed to accept forstner bits with shank sizes of 3/8 inch or slightly smaller;

Specification:
Material: High-carbon steel
Shank Dia.: 3/8-inch;
Extend Length: 3-1/4 inch & 5-3/4 inch;
Total length: 4.5 & 7 inch.

Package:
1x 4.5 inch Forstner bit Extension
1x 7 inch Forstner bit Extension
2x Hex Key