What people love (and don’t love)
What people love
- Heavy duty steel construction offers great durability and solidity.
- Extends drilling depth up to 8-1/2” for Forstner bits, useful for deep drilling projects.
- Good fit and finish, with bits fitting snugly and the extension holding securely in place.
- Works well with round, tri-flat, and hex shank bits, providing versatility.
- Highly praised for quality and value for money compared to cheaper alternatives.
What people don’t love
- Set screws sometimes fail to keep round shank bits from spinning, requiring modification.
- Does not fit all 3/8” Forstner bits due to a smaller collet size.
- Some users needed to grind the shanks of their bits to achieve a good fit.
- Minimum diameter limitation may restrict use with smaller bits.
Sturdy and well-made Forstner bit extensions that add valuable drilling depth but may require some bit modifications for optimal fit.
Summary based on customer review evidence.
Quick facts
- Brand: Fulton Woodworking Tools
- Price: USD 22.86
- Rating: 4.40 (2349 reviews)
If you’ve ever needed a clean Forstner hole deeper than your bit can comfortably reach, the Fulton 6" & 10" Forstner Bit Extension Set is an easy upgrade for your woodworking kit. The 6" extension adds over 5-5/8" of additional drilling depth, while the 10" extension adds over 8"—making it useful for deeper bores in projects like furniture parts, vessels, pepper mills, and runs for wiring.
You can view the current price and full details on Amazon here.
Both extensions feature precision-machined chucks sized for 3/8" shank Forstner bits, aiming for a tight, stable fit when you’re pushing deeper into the workpiece. The extensions are made from solid machined steel (alloy steel) with an uncoated finish and are intended for use on wood.
Designed for versatility, this set can be used with drill presses, lathes equipped with drill chucks, and power drills. (Forstner bits and machinery are not included.)
- Two-piece set includes 6" and 10" extensions for added reach
- Adds over 5-5/8" (6") or over 8" (10") of drilling depth for deeper bores
- Precision-machined chucks accept 3/8" shank Forstner bits for a secure, stable fit
- Solid machined alloy steel construction for durability in woodworking and construction use
- Works with drill presses, lathes with drill chucks, and power drills (bits/tools not included)











