Fulton 6" Forstner Bit Extension – Heavy Duty Steel 3/8 Drill Bit Extension, Adds 5-5/8" Drilling Depth to Forstner Bits for Woodturning, Furniture & Carpentry
Key features
- •Drilling with forstner bits to achieve a flat bottom hole or to start a deep hole turning project like on a larger vase or vessel is essentially impossible with a standard length forstner bit. To remedy this issue we have developed a heavy duty steel extension that allows you to secure a 3/8 inch shank forstner bit into the end collet.
- •The forstner bit extension gives you additional 5-5/8 inches of reach to bore deeper into your projects. This will help you create larger diameter starter holes or help when you need to drill in just a little further than the standard bit length will allow. The extension can be used with forstner bits on drill presses, lathes with a drill chuck installed (drill chuck not included) or with a power drill.
- •One of the most common uses for the forstner bit extension is for woodturners who need to bore out starter holes on larger vessels. However, the extension works exceptionally well for projects like salt shakers, pepper mills or even wood turned beverage mugs. Contractors use the extension when they need to bore deep holes for running cables or wires and they also use it for joining larger timbers.
- •The collet outside diameter is 25/32 inch without the set screws protruding outward. The reason this is important is that as we mentioned earlier, some bits may have slightly different shank sizes. This means the set screws may protrude outwardly from the collet. The minimum size hole this extension will allow you to drill is 13/16 inch. Forstner bits and Machinery shown in pictures are NOT included.
- •The forstner bit extender is made from solid, heavy duty machined steel. It is designed to be used with forstner bits only. The collet inside diameter is 3/8 inch. This tolerance is very tight and designed to accept forstner bits with shank sizes of 3/8 inch or slightly smaller. Please note that some forstner bit manufacturers produce bits that say 3/8 inch shank size when in fact they are not. If you measure your bit shank and it is 3/8 inch, your bit should fit once the set screws are loosened
Fulton 6" Forstner Bit Extension – Heavy Duty Steel 3/8 Drill Bit Extension, Adds 5-5/8" Drilling Depth to Forstner Bits for Woodturning, Furniture & Carpentry
List Price: $28.83$25.95DEALYou Save: $2.88 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 24, 2026In Stock (3)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection
Customer Reviews
Reviews sourced from verified Amazon purchasers4.2
out of 5
Based on 10 reviews
5★
90%
4★
0%
3★
10%
2★
0%
1★
0%
fine file and hone the inside of the extension
Wood Wizard•December 28, 2017
You get what you pay for. I have the Porter Cable 14 piece forstner bit set and not one of them fit the inside of this extension. After placing the extension on my lathe I was able to take a round, fine file and hone the inside of the extension. After some filing with my lathe running I was able to remove enough material for the forstner bits to fit. Be prepared to do this when you buy one of these extensions. Note: remove the set screws.
Five Stars
ShelterIslandJoe•April 29, 2017
Accurate and true.
Five Stars
bill with a jeep•January 5, 2017
on time on budget. Just right for deep forstner bit cuts
Five Stars
NABIL RAMI KASTI•September 16, 2016
Good.
Good item
antonio genovesi•February 9, 2016
Works as it should. No issues at all.
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