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Fulton 10 inch Long Forstner Bit Extension for Adding Over 8' of Drilling Depth to Your Forstner Bit Ideal for Wood Turners Furniture Carpentry and Construction (3/8 inch Collet)

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$21.43

$ 10 .99 $10.99

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About this item

  • 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 an extra long, 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 8-1/2 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 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
  • 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.



Product Description

Fulton Woodworking Tools and Accessories

Fulton 6 inch Long Forstner Bit Extension For Adding Over 5-5/8 inches of Drilling Depth To Your Fo

Extend Your Forstner Bit Capabilities

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 an extra long, heavy duty steel extension that allows you to secure a forstner bit into the end collet

Chef Specialties Professional Series 8 Inch, Made in USA Salt Mill Mechanism Kit
IVY Classic 46152 4-Inch Forstner Bit Extension, High Carbon Steel, 1/Tube

More Drilling Depth for Larger Projects...

We've all been there. We need either a lot more or just a little more depth for a woodworking project we're working on. Some of us may have a longer forstner bit, but for the most part we are stuck trying to find something that will work. In steps the 10" long Heavy Duty Forstner Bit extender! Now you can gain up to 8-1/2" of drilling depth on top of your standard forstner bit drilling depth. Ideal for wood turners, carpenters, woodworkers and more.

Drill Deeper, Cleaner Holes Using Your Lathe, Hand Drill or Drill Press

IVY Classic 46152 4-Inch Forstner Bit Extension, High Carbon Steel, 1/Tube

Lathe

Using the forstner bit extension on a lathe requires and drill chuck (sold separately) for proper use. Once properly mounted, the extension adds up to 8-1/2" of drilling depth!

PORTER-CABLE Forstner Bit Set, 14-Piece (PC1014)

Hand Drill

Mount the extension to a hand drill to bore into larger projects. Many woodturners love using the extension to create starter holes so they don't have to remove so much material with there turning tools.

Vermont American 17104 12-Inch Standard Drill Bit Extension

Drill Press

Simply mount the extension and bit in the chuck and you're ready to start drilling! The extension provides up to 8-1/2" of drilling depth for larger projects. Ideal for vases, large vessels and more.

Forstner Bit Extension, 3/8" x 4"

Built Tough

Struggling to find a forstner bit extension for larger jobs that is not only long enough, but strong enough is now a thing of the past! This heavy duty forstner bit extender is made from solid, machined steel to exacting specifications. This means that it will stand up to most any type of wood working project and more. The forstner bit extender is designed to be used with forstner bits only.


Train
2025-09-03 14:24:01
It's durably built. You can tell it's well constructed when you first pick it up. The screws does hold the bit in place very securely. I found that to be the case even when only one of the two screws is used. But I due recommend using both when possible. As stated on Amazon. All 3/8 inch bits are not the same. I had three - one didn't fit at all, another only fit deep enough to reach one of the screw holes (which was sufficient), a third one fit completely where both screws could be used to secure the bit. My suggestion would be to get the smallest 3/8 inch shank you can find or get the one that's from the manufacturer of the extension. The one that fits perfectly I found at Ace Hardware, so that's another option. The others I had came from Harbor Freight Tools and Home Depot. Not a kock on these great outlets, just saying their 3/8 shank don't appear to perfectly fit the extension from this manufacturer.
CLB
2025-08-19 14:26:45
It seems to be well build and does what it says it will do. Worked perfectly in my application where I had to drill deeper than the shank of the bit would allow.
Austin
2025-07-24 18:10:34
As other reviews describe perfectly, the extension is nice if it would actually fit 3/8" shank fostner bits. Unfortunately they undersized the opening for bits and is not compatible with most 3/8" shanks
MacAttack
2025-06-20 17:40:53
At first I was hesitant about whether or not it would work as described. Rest assured this tool is a quality piece that works as described.I use it to extend my Irwin wood auger bits. My bits have the faceted drive ends and they fit almost snugly into the Fulton bit extender. When the allen screws are tightened the unit runs with no apparent runout. I didn't try using a dial indicator on it but, I couldn't see or feel any wobble while drilling through 2 inch oak floor joists. YMMV
CapeZinFan
2025-06-11 09:24:45
The question in my mind was, "will this fit the shank of the forester bits I have without being off-center?" The answer is yes.So, if you have 3/8" shank bits this works fine. If you have other bits, it will not be centered.
Kindle Customer
2025-05-31 11:00:02
If, for whatever reason, you need an extension for your forsner biti(s), this is a good choice. Solid tool steel; bit clamps in place with two set screws. Allen wrench included. Comes in various lengths.
CPIV
2025-05-30 11:19:13
Was a little disapointed in this bit extender that even though it says that it fits a standard size shank and Amazon had this listed as frequently purchased with the bit I purchased the bit did not fit this extender without modification being required on the bit shank. On top of the sizing the set screws seem to have both stripped out when tightening down on the first bit used. I would not recommend.
C. Chartier
2025-04-19 14:01:55
Worked perfectly as expected.
GCG
2025-03-21 14:31:06
Works well nonissues
donnyray
2025-03-04 12:07:01
Liked the heavy duty construction of the tool. Used it immediatly when I received it. Should last a lifetime.
Raven
2025-02-16 14:29:19
Good strong easily added.
Craig McClelland
2025-01-28 15:13:46
Exactly what I needed and received quickly!
Mario Duchesne
2025-01-06 11:52:43
Je n'ai pas reçu la bonne dimension... donc aucune utilité pour moi . très mauvais achat.
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