Best Long Drill Bits of 2026

"I drilled over 20 holes in treated pine with one of these bits, and it's still in excellent condition. For the price, these are fantastic for pilot holes and have exceeded my expectations."

"I needed a longer bit for a guitar build, and this product was exactly what I was looking for. It performed perfectly for my needs."

"I was specifically looking to drill a 5/8 inch hole 4 inches deep into pressure-treated lumber. While the threads on this bit don't extend far enough up the shank for my application, it clamped tightly in the drill and didn't come loose. If you don't require extended threads, it works just fine."

"As someone who installs alarms, I use this long drill bit on both wood and light gauge steel several times each week. It gives me about three months of solid use before needing a replacement, which is great value for the price. Unlike regular wood bits, this one doesn't dull quickly when hitting metal and the point stays steady without drifting. Definitely my top pick for a multi-use bit."

"I bought this extra-long drill bit specifically to widen the umbrella hole in my studio strobe, since shorter bits couldn't reach. It fit perfectly in my DEWALT drill and made quick work of the hard plastic. The end result? My photography umbrellas now fit perfectly, and the bit still looks good as new. Highly satisfied with the outcome."

"I needed a drill bit capable of expanding 3/8-inch holes to 5/8-inch in thick plate steel. This one handled the job, though it was a bit slow, but for the price, it's unbeatable. I noticed the core is thinner than expected, but the bit stayed intact and can be resharpened easily. Great buy for the value!"

"I found this drill bit to be sharp and very precise, which made my job much easier. The length was just what I needed, and considering the affordable price, I'm definitely planning to buy it again."

"After struggling with split boards and misplaced screws in my decking project, I followed my brother's advice and used this drill bit. It prevented any cracks in my boards and made the process effortless, requiring minimal physical effort."

"I bought this bit specifically to deal with damaged screw heads in hard-to-reach spots. Its extra length helped me reach deep screws in my equipment, and it cut through them with ease. The only minor issue was a slight curve in the bit, but it worked perfectly for my needs."

"I was worried about drilling into shower tile, but after testing on a porcelain tile, the bit immediately dug in with no slipping. I had no issues drilling 12 holes for grab bars—the process was quick and easy with these bits."

"I needed to make 178 holes in thick porcelain tiles for signage, and these bits held up impressively. Used with water and an impact gun, I found they cleaned out material better than diamond hole saws. I got about 8-10 holes per bit."

"This bit worked perfectly with my impact driver when I was mounting mirrors. No walking or binding at the start, and it created smooth, clean holes in porcelain tile."

"I have a houseboat from Canada, and every screw on it needs a square head bit. This set is exactly what I needed—well-made, reasonably priced, and comes with multiples of each size. I’m definitely recommending this to others."

"I needed a triangle driver with a long reach to remove screws from a coffee maker. These bits did the job, but I noticed they're pretty soft, so I wouldn't use them with an impact driver. For occasional use, they work fine."

"I lost my previous set and picked this one up—it's sturdy, just what I was looking for, and helps round out my toolkit. I even grabbed a set of metric allens to go with it. Very satisfied with this purchase!"

"I needed a 6-inch drill bit to repair a cutting board, and this bit was exactly the size I was missing in my collection of professional tools. With it, I was able to finish the repair perfectly."

"I used these drill bits for drilling through PVC for irrigation parts and was impressed by how well they performed. After about 60 holes, only one bit broke, and that wasn't due to the bit's quality. They are reliable and arrived quickly."

"For my work with landscape timbers, these long bits have been excellent. They held their edge, didn’t break, and made deep drilling easy. I appreciate that the price was more than fair for the quality."

"I was amazed at how quickly and easily these Bosch bits cut through thick steel and even stainless, especially after struggling with cheaper options that barely made a dent. With some cutting fluid, they powered right through, and I’ll definitely be buying more for my repair projects."

"After several frustrating attempts to drill out a broken bolt with Milwaukee and Dewalt cobalt bits, I tried these Bosch bits and they just tore straight through the hardened steel. I didn’t even need to sharpen them. They saved my elliptical and I’m keeping them handy for emergencies."

"The bits work great and drill quickly through both wood and metal. The only thing missing is a size chart on the case, which would make it easier to pick the right bit. Still, the quality more than makes up for it."

"I've always trusted Milwaukee products for their exceptional build quality and lasting value. The variety of sizes and the durable storage case make these bits a great investment. Drilling through metal plates was effortless, and I appreciate being able to find genuine Milwaukee items easily now. I always select the bits designed for my impact driver."

"These are by far the best drill bits I've ever used, especially considering the price. I appreciate that I can replace individual bits instead of buying a whole new set. After drilling about thirty holes in thick steel for a truck project, the bits are still as sharp as when new. I highly recommend them."

"I've gone through a lot of bits in blacksmithing, but these have a reliable bite and handle various materials well. As long as I use proper technique, they perform great. Authentic and dependable quality every time."

"I was amazed by how easily this drill bit powered through both plastic and steel—it felt effortless, like pouring gas through a funnel. I'm genuinely impressed with the performance and would definitely use it again."

"Using these bits for installing hidden fasteners on thick insulated metal panels has been a game changer. They cut cleanly and last much longer than I expected, making my work on steel structures way less frustrating."

"At first, my bit snapped right out of the package, but Amazon quickly sorted out the return. The replacement worked perfectly for drilling into an aluminum cylinder head, and I had no further issues with quality."

"I received my order quickly and the drill bit was exactly the right length I needed for work. The price was fantastic, and the quality exceeded my expectations. I’d definitely recommend it to others."

"This bit was just what I needed for my project—the build quality is solid and the price couldn’t be better. I have more of the same work coming up, so I’m glad I found this seller."

"The drill bit looked great, but it only lasted for a few holes before wearing out. I was hoping it would hold up longer for a bigger job."