Best Power Drill Bit Extensions of 2025

"I didn't realize how much I needed this extension until I used it. It made disassembling a shelf much easier, especially with hard-to-reach screws. I'm extremely satisfied with its durability and magnet strength. It locks securely and fits perfectly into my adjustable drill key."

"I needed to bore out .100” from an aluminum pipe, and my previous extension kept losing the bit. After switching to the Diablo bit extension, I found it held the bit like it was welded. I managed to bore through four pipes without any issues. This extension deserves a 20+ rating!"

"For the price, this extension is a good buy. The locking mechanism is strong, and I’ve only experienced it letting go of a bit when it was really stuck. It’s great for reaching tough spots and saves me from unnecessary bending. Easy to install in the drill too!"

"I've been in the electrical field for 18 years and have tested many bit holders, but these Dewalt ones are my favorite. They are robust and securely hold the bits until I use the release at the base. Their narrow design allows for use in tight spaces, and I appreciate the ability to stack them for extra reach. However, I did have a minor issue with the release cover coming loose, which I managed to fix. Overall, they are definitely worth it!"

"I prefer the pull-to-release mechanism on these Dewalt bit holders. They feel well-made and sturdy. While Milwaukee offers similar lengths, their design is bulkier, making it difficult to fit into small holes. Dewalt's release mechanism is also more secure when working in tight spaces. I've used these extensively and have had no issues. For a handyman like me, Dewalt extensions are my go-to!"

"I've purchased the 12-inch and 6-inch locking extensions from Dewalt, and they perform excellently. Under heavy commercial use, I typically get around 8 months of usage before the locking mechanism fails. So far, this is the longest-lasting brand I've encountered!"

"I've always trusted Diablo products for their quality, and this one is no exception. It works perfectly and is well-designed."

"This is a great product! I just wish they offered more sizes with the same quality and design."

"If you're in need of an extension tool, this is a must-have. It works amazingly!"

"This extension is exactly the tool I needed for extended reach. No faults!"

"I had to modify my Forstner bit to ensure it wouldn't spin in the extender. Flattening the shank worked perfectly, and I drilled a hardwood log successfully!"

"One of the Allen key tighteners was not made correctly, causing the unit to be a bit tricky to handle. However, I contacted Century Tools, and they sent me a whole new unit that works great!"

"Living in upstate South Carolina, I had to drill through a 46-inch red oak tree that was damaged by Hurricane Helene. Using this extension with a 6-inch auger, I managed to drill three 1 1/8-inch holes. It was a tough job, burning out a drill and damaging bits, but the extension performed beyond my expectations."

"I purchased this for drilling through drywall for wiring. It's flexible and sturdy, making it perfect for the job. When I lost a set screw, Eagle Tool's customer service sent me replacements at no cost. That's a company that knows how to treat its customers!"

"I bought this to take down a deck without straining my back. It allowed me to remove dozens of floorboards while standing. The only challenge was removing my 1/4-inch bit from the socket afterward, but it worked as promised and saved me from discomfort!"

"I'm currently using this for various DIY projects. The durable soft shaft and 90° right angle screwdriver bits are incredibly handy. I no longer struggle with awkward angles. Highly recommended!"

"I got this to help me reach a tight spot. I made it there, but I still needed another extension to finish the project. I can say that this item does help you get into some tight spots."

"Words can't express how helpful this little tool is. I searched everywhere, from Home Depot to Canadian Tire, and couldn't find it. It's very useful for hard-to-reach spaces. Despite some reviews about breakage or cheap material, I haven't experienced that at all. It has exceeded my expectations!"

"For years, I used the shorty adapter set from Harbor Freight, but they weren't always long enough. I had no idea longer adapters existed! This set is just perfect with three common diameters (1/4", 3/8", 1/2") and different lengths. I appreciate the holders they come with, as it prevents losing them in my toolbox. I did have to return the first set due to a packaging error, but the second set was correct. Check your pieces upon arrival!"

"I've become a fan of Work Pro because they offer quality tools at reasonable prices. This set has been a great addition to my collection!"

"I found this purchase to be very satisfying. It's a good value for someone like me who isn't a professional but uses tools recreationally. So far, it has held up well!"

"This set is fantastic if you own an impact driver. The quality versus price ratio is unbeatable. I've used them a lot over the last two weeks, and they still look brand new. They're also super easy to clean, and the rubber holder fits perfectly in the yellow canvas bag that came with my impact driver set. I will definitely be a returning customer!"

"I found this set at a great price and it includes every size I could possibly need. They fit perfectly into my drill and impact driver, making switching sockets a breeze. I've used them on multiple home projects and even for vehicle maintenance. They reach those hard-to-access areas easily, and after weeks of use, they still look brand new!"

"These bits are a steal for the price! I haven't used them in impact drivers yet, but they seem promising."

"This set has a fantastic selection of adapters and sockets. I'm confident they'll be useful in many situations."

"I used this product in a rewards system for our technicians. It was very well received, and we plan to keep using them."

"I got this for my son-in-law for Christmas, and he was the envy of all the other guys. They gathered around like kids with a new toy, eager to try the unique drill bits."

"I own a Grizzly 31 piece set and wasn't sure which extender to use. I contacted Grizzly customer support, and they mentioned it existed online. I took a gamble on this extender, and I’m pleased with how sturdy and larger than expected it is. It has two standard screws and a hex key. To keep the key from getting lost, I recommend attaching small magnets to the shaft. It works great without wobble at standard forstner bit speeds, and the screws secured the hex shank perfectly."

"I primarily use this extension for drilling deep holes in my wood turning projects. It really delivers, allowing me to bore into my materials effectively. I appreciate how it has minimal wobble and provides a strong, straight extension."

"I was really happy with this extension when I used it for a 2-inch hole. Initially, I worried about the two set screws holding the torque, but after drilling without slippage at 275 rpm, I was extremely satisfied with its performance."