Top 10 Bit Extension Forstner – Forstner Drill Bits

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1. Fulton

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Fulton 6 inch Long Forstner Bit Extension for Adding Over 5-5/8 inches of Drilling Depth to Your Forstner Bit. for Wood Turners, Furniture, Carpentry and Construction

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Fulton #ad - The forstner bit extender is made from solid, heavy duty machined steel. 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. If you measure your bit shank and it is 3/8 inch, your bit should fit once the set screws are loosened.

This means the set screws may protrude outwardly from the collet. This tolerance is very tight and designed to accept forstner bits with shank sizes of 3/8 inch or slightly smaller. The reason this is important is that as we mentioned earlier, some bits may have slightly different shank sizes. 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. 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.

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 minimum size hole this extension will allow you to drill is 13/16 inch. Please note that some forstner bit manufacturers produce bits that say 3/8 inch shank size when in fact they are not. The collet outside diameter is 25/32 inch without the set screws protruding outward. It is designed to be used with forstner bits only.
BrandFulton #ad
ManufacturerFulton Woodworking Tools and Accessories #ad
Part Number927

2. Fulton

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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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Fulton #ad - 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. One of the most common uses for the forstner bit extension is for woodturners who need to bore out starter holes on larger vessels.

The collet outside diameter is 25/32 inch without the set screws protruding outward. 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. However, the extension works exceptionally well for projects like salt shakers, pepper mills or even wood turned beverage mugs. This means the set screws may protrude outwardly from the collet. If you measure your bit shank and it is 3/8 inch, your bit should fit once the set screws are loosened. The reason this is important is that as we mentioned earlier, some bits may have slightly different shank sizes.

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. 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 minimum size hole this extension will allow you to drill is 13/16 inch. The forstner bit extension gives you additional 8-1/2 inches of reach to bore deeper into your projects.
BrandFulton #ad
ManufacturerPeachtree Woodworking Supply Inc. #ad
Part Number200-2206
Model2206

3. IVY Classic

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

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IVY Classic #ad - Extends any forstner shank bit an additional 4 inches, Swift Bore Registered Trademark. To fasten the shank in place, use the hex key to tighten these screws. High-carbon steel construction, precision ground and polished. Shank: 3/8-inch, length: 4-inch. Ideal for use with any 3/8" shank bit. Two set screws and hex key included.
BrandIVY Classic #ad
ManufacturerIVY Classic Industries #ad
Height0.63 Inches
Length4 Inches
Weight0.03 Pounds
Width0.63 Inches
Part Number46152
Model46152

4. MLCS

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MLCS 9270H 5-Inch Long Forstner Bit Extender with Hex Shank

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MLCS #ad - Item package dimension: 5. 0" l x 1. 0" w x 1. 0" h. High quality Steel. Drill flat Bottom Holes. Non slip Hex Shank.
BrandMLCS #ad
ManufacturerMLCS #ad
Height1 Inches
Length5 Inches
Weight0.02 Pounds
Width1 Inches
Part Number9270H
Model9270H

5. WOODRIVER

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Forstner Bit Extension, 3/8" x 4"

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WOODRIVER #ad - Socket accepts forstner bits with 3/8” diameter shanks. Our award winning family of brands includes WoodRiver, planes, Woodcraft and Woodcraft Magazine as well as the greatest selection of woodworking books, videos, sanding, hand tools, kits, and plans.

Forstner bit held in extension socket with two set screws - 3/8” diameter drive shank allows use of multiple extensions. Extension adds 4” to length of forstner bit. Woodriver is proudly made by woodcraft, wood stain and paint, america’s leading supplier of saws, highpoint, power tools, routers, wood, dust collection and more. Designed for use with WoodRiver forstner bits only.
BrandWOODRIVER #ad
ManufacturerWoodcraft Supply #ad
Height0.8 Inches
Length5.15 Inches
Weight0.26 Pounds
Width2.35 Inches
Part Number145705W

6. Fulton

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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 1/2 inch Collet

#ad
Fulton #ad - However, the extension works exceptionally well for projects like salt shakers, pepper mills or even wood turned beverage mugs. The collet inside diameter is 1/2 inch. It is designed to be used with forstner bits only. One of the most common uses for the forstner bit extension is for woodturners who need to bore out starter holes on larger vessels.

If you measure your bit shank and it is 1/2 inch, your bit should fit once the set screws are loosened. 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. Please note that some forstner bit manufacturers produce bits that say 3/8 inch shank size when in fact they are not. 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.

Forstner bits and Machinery shown are NOT included. This tolerance is very tight and designed to accept forstner bits with shank sizes of 1/2 inch or slightly smaller. The forstner bit extension gives you additional 8-1/2 inches of reach to bore deeper into your projects. To remedy this issue we have developed an extra long, heavy duty steel extension that allows you to secure a 1/2 inch shank forstner bit into the end collet. The minimum size hole this extension will allow you to drill is 15/16 inch.
BrandFulton #ad
ManufacturerPeachtree Woodworking Supply Inc. #ad
Part Number200-2205
Model2205

7. SOMADA

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Wood Drill Bit for Soft and Hard Wood for use in Drill Press, SOMADA 2-Inch Forstner Drill Bit for Wood, 3/8-Inch Round Shank

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SOMADA #ad - Somada is a us brand owned by a small business. Max rpm 450 recommeded. Application: perfect for drilling flat bottom and pocket holes efficiently. Perfect for fine woodworking, cabinet-making, power drill, and any diy project.

Size: 2-inch diameter, 3. 5 inch shank length, ⅜-inch shank diameter. Complete your forstner drill bit set with this 2 inch size for your DIY projects. Design: sharp multi-teeth design to work smoothly with hardwood, softwoods, plywood. 100% customer satisfaction guarantee by our customer service team. Made of high carbon steel. Bit tip: easy to start tip for stability while drilling. Shank is suitable for hand drill, drill press and lathes. 3/8 inch round shank for easy compatibility with Forstner bit extensions, drill press and lathes.
BrandSOMADA #ad
ManufacturerSOMADA #ad
Height2 Inches
Length3.5 Inches
Width2 Inches
Part NumberSOMA-FDB1000

8. IVY Classic

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IVY Classic 10700 6-Inch Wood Spade Bit Extension, 1/Card, High-Carbon Steel

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IVY Classic #ad - Length: 6-inch, shank: 1/4-inch quick-change power hex. Ideal for use with wood spade bits. Two set screws and hex key included. High-carbon steel construction, precision ground and polished. Extends any 1/4-inch round or hex shank bit an additional 6 inches, Swift Bore Registered Trademark. To fasten the shank in place, use the hex key to tighten these screws.
BrandIVY Classic #ad
ManufacturerIVY Classic Industries, Inc. #ad
Height0.6 Inches
Length6 Inches
Width0.6 Inches
Part Number10700
Model10700

9. American Saw

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American Saw Lenox Tools 3084655X 5-1/2-Inch Drill Extension and 1/2-Inch Shank

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American Saw #ad - Item package Weight: 06 lb. Model number: 3084655X. Country of Origin: China. Item package dimension: 9. 25" l x 3. 0" w x 1. 0" h.
BrandAmerican Saw #ad
ManufacturerLenox Tools #ad
Height8 Inches
Length0.25 Inches
Weight0.45 Pounds
Width2.88 Inches
Part Number30846-55X
Model3084655X

10. OBPSFY

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OBPSFY 6 inch & 12 inch Forstner Bit Extension,Wood Spade Bit Extension Bar with 2 Pcs Key,Drilling Depth Tool for Wood Turners Furniture Carpentry and Construction1/4 inch Collet

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OBPSFY #ad - Forstner bit extension set- 6inch/15cm and 12inch/30cm forstner bit extension set,wood spade drill bit extension, help you to drill in just a little further than the standard bit length will allow. Provide nice operability. Suitable for hard-to-reach bolts and screws, allowing you to complete your work better and faster.

With this extension tool, lathes with a drill chuck installed drill chuck not included or with a power drill. It can make sure that your bits stay in place and never wobble while in use as well as keep maximum control and accuracy when drilling and driving. High-carbon steel construction, precision ground and polished makes it to has nice rust resistance. Material- made of high-carbon steel, safe and durable. Package- 1 * 1/4" hex shank 6 inches quick-change spade drill bit extension + 1 * 1/4" hex shank 12 inches quick-change spade drill bit extension + 2 * hex keys(To fasten the shank in place, use the hex key to tighten these screws).

Applications- the extension drill bit kit is perfect for mechanics, construction work, you’ll be able to reach almost everywhere,saving you time and effort. The extension can be used with forstner bits on drill presses, homeowners or anyone who want their jobs can be carried out in convenient and simple ways. Ideal for use with wood spade bits. 1/4 inches hex shank- wood bit extension sets are suitable for most 1/4 inches drill bit extension hex shank insert and power bits, drills, which can be applied for all of your needs screws, handheld drivers, nuts, tool box and construction can work with the wood bit extension sets.
BrandOBPSFY #ad
ManufacturerOBPSFY #ad
Part NumberForstner Bit Extension kit