Top 9 Drill Bit Extension 3/8 Shank – Hole Saws

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1. Lenox Tools

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10-Inch x 3/8-Inch 3084310X, LENOX Tools Hole Saw Extension Chuck

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Lenox Tools #ad - 3/8" or larger chuck size. Hardened carbon steel for strength. Fits 5l, 6l and 7l solid-hex arbored hole saws. Extension is compatible with 5L and 6L SNAP-BACK arbors.
BrandLenox Tools #ad
ManufacturerLenox Tools #ad
Height0.75 Inches
Length12.5 Inches
Weight0.62 Pounds
Width2.88 Inches
Part Number3084310X
Model3084310X

2. Century Drill & Tool

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Century Drill & Tool Ship Auger Extention, 3/8 In. Shank, 12In. 38112

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Century Drill & Tool #ad - Securely grips ship auger drill bits for extended length. 12" length. Extension’s shank fits ½" drill chucks. For use with ship auger bits with 3/8” hex shanks.
BrandCentury Drill & Tool #ad
ManufacturerCentury Drill & Tool Corp #ad
Height0.75 Inches
Length12 Inches
Weight0.84 Pounds
Width0.75 Inches
Part Number38112
Model38112

3. 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 - This tolerance is very tight and designed to accept forstner bits with shank sizes of 3/8 inch or slightly smaller. The forstner bit extender is made from solid, heavy duty machined steel. 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 minimum size hole this extension will allow you to drill is 13/16 inch. 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.

The collet inside diameter is 3/8 inch. The collet outside diameter is 25/32 inch without the set screws protruding outward. Forstner bits and Machinery shown in pictures are NOT included. 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 3/8 inch, your bit should fit once the set screws are loosened. However, the extension works exceptionally well for projects like salt shakers, pepper mills or even wood turned beverage mugs.
BrandFulton #ad
ManufacturerPeachtree Woodworking Supply Inc. #ad
Part Number200-2206
Model2206

4. Neiko

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NEIKO 00228A Socket Adapter Extension Set | 3-Piece | 1/4, 3/8, 1/2-Inch Drive | 1/4-Inch Hex Shank | 6-Inch Length | Impact Grade | Cr-V Steel | For Power Drills & Impact Drivers

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Neiko #ad - Versatile: whether you are a do-it-yourselfer DIY’er or an industry professional, these impact socket adapters will fit your needs across home improvement, mechanical or automotive maintenance/car repair needs.

Durable: made of high strength impact grade chrome vanadium steel and coated with corrosion resistant black manganese phosphate, this impact socket adapter set will last for years in your toolbox at home or the garage. Compatibility: this socket to bit adapter set has 1/4-inch hex shanks compatible with any corded or cordless impact driver or power drill, including right angle drills. Specifications: these socket adapter extension bars are 6-inch length and feature a 1/4-inch hex shank, and are compatible with 1/4, 3/8 and 1/2-inch drive sockets.

Easy to use: all adapter extension bars are outfitted with a spring-loaded ball detent that locks onto sockets to ensure a secure fit into the driver head to prevent slipping or loosening when applying torque to regular nuts, lug nuts and bolts.
BrandNeiko #ad
ManufacturerNeiko #ad
Weight0.51 Pounds
Part Number00228A
Model00228A

5. Freud

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DHS375XT12, Freud-Diablo 3/8 X 12 SNAP Lock, Multicolor

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Freud #ad - Diablo 3/8 x 12 snap lock. Diablo 3/8 x 12 snap lock. Diablo 3/8 x 12 snap lock. Diablo 3/8 x 12 snap lock. Diablo 3/8 x 12 snap lock.
BrandFreud #ad
ManufacturerFreud #ad
Height1 Inches
Length1 Inches
Width1 Inches
Part NumberDHS375XT12
ModelDHS375XT12

6. DEWALT

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3/8-Inch by 18-Inch DW5232, Percussion, DEWALT Masonry Drill Bit

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DEWALT #ad - 2-cutter carbide tip of drill bit maximizes carbide surface contact for longer bit life. Four flute design of dEWALT drill bits cleans debris out for fast, efficient drilling. Three flats on shank eliminate bit slipping in chuck except DW5232, DW5237, DW5233, DW5238.
BrandDEWALT #ad
ManufacturerDewalt #ad
Height0.3 Inches
Length20 Inches
Weight0.01 Pounds
Width2 Inches
Part Number23886322
ModelDW5232
Warranty30 Day Money Back Guarantee

7. YFLY

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3PCS Set 1/4" 3/8" 1/2" | Impact Grade Socket Adapter | Hex Shank Adapter Drill Nut Driver | Power Extension Bit Set for Drills 3PCS

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YFLY #ad - Package:3pcs set 1/4" 3/8" 1/2" | impact grade socket adapter | hex Shank Adapter Drill Nut Driver | Power Extension Bit Set for Drills 3PCS. General usage: this 3 piece hex shank bit driver extension bar set is designed to meet a variety of needs.

Fits snugly and securely in your drill chuck or hand held driver. The exterior anti-weathering coating provides extra protection from damage against elements and substances such as oil and fluids that may come in contact with the extension bars during use with repairs such as in the automotive field. The spring ball lock ensures a tight fit into the driver head to prevent slipping during use. Purpose: this adapter set is designed to provide a securely locked in extension to your existing tool.

Provides additional length to reach into a multitude of hard to reach spaces. Specifically machined to fit securely into a hand held driver, drill driver or impact wrench. Consisting of your most common bit sizes 1/4", 3/8", and 1/3" changing shank sizes. Durability: quality is a with this 3 piece sturdy and durable solid steel set designed to withstand torque compression under most standard use situations.
BrandYFLY #ad
ManufacturerYWSHF #ad
Weight0.11 Pounds
Part NumberTOOL03

8. dophee

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Dophee 8Pcs Socket Adapter Impact Hex Shank Drill Bits Power Extension Bar Set 1/4" 3/8" 1/2" Bits

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dophee #ad - Suitable for quick change 1/4" chuck systems or directly into drill chuck. Change your hand socket set into a driven socket set. Suitable for a screwdriver or electric screwdriver handle tools hexagonal hole or three-jaw chuck can drive sleeve and after use can be installed on the size of the original hexagonal polygons converted to square head size, which can be used to install the sleeve is a good accessory to convert.

8pcs 1/4" 3/8" 1/2" cr-v impact socket adapter sizes: 4 pieces of 1/4 inch drives, 2 pieces of 3/8 inch drives, 2 pieces of 1/2 inch drives. This set is perfect for your impact driver or drill, and allows you to replace your ratchet with a power tool.

Chrome vanadium steel suitable for heavy duty impact drivers. Spring loaded ball bearings on each square head securely and locks into sockets to avoid slippage during using. Material: chrome vanadium steel. Compatible with power drills and screwdriver handle tools. The 1/4" hex shank fits all quick change chucks as well as standard drill chucks.
Branddophee #ad
ManufacturerDophee #ad
Weight0.28 pounds
Part Number2889RK
Model55067

9. Fulton

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

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Fulton #ad - If you measure your bit shank and it is 3/8 inch, your bit should fit once the set screws are loosened. Forstner bits and Machinery shown in pictures are NOT included. The collet inside diameter is 3/8 inch. This means the set screws may protrude outwardly from the collet. 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.

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. 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. 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. 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.
BrandFulton #ad
ManufacturerFulton Woodworking Tools and Accessories #ad
Part Number927