




💎 Sharpen Smarter, Work Stronger — Never Let a Dull Bit Slow You Down!
The Drill Doctor DD350X is a professional-grade drill bit sharpener featuring an industrial diamond wheel that sharpens standard twist bits from 3/32" to 1/2". Its innovative cooling design prevents overheating, preserving bit tempering for longer life. With a simple two-step sharpening process and precision V-block jaws, it delivers perfect 118° angles every time. Designed and assembled in Oregon, this tool combines durability, ease of use, and American craftsmanship to keep your workshop running at peak performance.






| ASIN | B00D3NM3VU |
| Best Sellers Rank | #1,702,148 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #439 in Power Drill Bit Sharpeners |
| Brand Name | Drill Doctor |
| Customer Reviews | 4.3 4.3 out of 5 stars (1,080) |
| Cutting Angle String | 118 Degrees |
| Finish Types | Diamond |
| Global Trade Identification Number | 00662949039673 |
| Included Components | Drill Doctor Drill Bit Sharpener, Chuck, Users Guide, Hub Wrench |
| Item Dimensions | 4 x 7 x 5 inches |
| Item Type Name | Drill Bit Sharpeners |
| Item Weight | 0.01 Ounces |
| Manufacturer | Drill Doctor |
| Material Type | Diamond |
| Model | DD350X |
| Number of Flutes | 2 |
| Point Style | Split Point |
| Shank Type | Straight |
| Surface Recommendation | Metal, Wood |
| Tool Flute Type | Straight |
| UPC | 662949039673 757073235951 |
| Unit Count | 1.0 Count |
O**F
Fast, accurate, practical, affordable.
I'm ancient and have been mechanical since my first Erector set at around 8. Owned my first car in the 7th grade, so I've done more than my share of wrenching, and way more drilling than maybe the "average Joe". I learned how to sharpen bits on a grinder in high school, and have collected hundreds of bits of all sizes up to 3/4" over the years. And years. And.....years. Somewhere along the line I lost my touch for hand sharpening and bought a new (then) B&D bit sharpener. When new, it was ok. But soon, it didn't give good results so I just fought dull bits like most people end up doing. I recently bought a set of Ryobi bits in a case thinking they looked capable. But even on wood, they are a POS. So I went for the Drill Doc 350X cuz it fills all my needs and is pretty affordable. For the better parts of two days, I've sharpened all my bits (I'm guessing about 400 or more). and I've tested them on mild steel with excellent results! I even REGROUND the factory grind on the Ryobi's and came out with good bits after all! So, I endorse this nifty little machine, even at the risk of having some X Spurts out there slam my review. I like that it's made in Oregon. The designer had a great and SIMPLE idea and went with it. The ONLY thing I could complain about is that on some of the bits, I notice a slight burr on the leading edge, even when extremely careful sharpening is performed, BUT I'm sure the burr will be gone after a couple revolutions in nearly any metal or even hard plastic. THAT'S IT! I'm happy with my purchase. The instructions may be confusing to some, as they name the indexing cam two different names. I'm surprised the editor didn't catch that. But it only slowed me down for a moment. The act of inserting the bit is really a no-brainer. Have fun! I am. Does anyone want a couple used B&D sharpeners?
N**S
Works great!
....If you can read and comprehend directions. Sure, there is a learning curve. You need to understand the terminology and the relationship of the machine parts and how you use them. But, it's not that hard IF you follow the included instructions. After a few dry runs to confirm I was setting up the bit properly, it was smooth sailing. In hindsight, it's pretty fool-proof. Took about 15 minutes to sharpen 4 bits that were super dull. I mean, so dull that they just spin on pine wood. Bits that would only need a touch-up should take just a few minutes to setup and grind. The trick is knowing how long to set the bit for more grinding and less adjusting. If you set the depth strictly as the instructions state, you'll be doing several adjustments per sharpening which equals a lot of time. I set my bit a hair longer and it worked great. Razor sharp too! The good news is that even if you mess up a bit, you can fix it easily with the included troubleshooting guide. However, the only real way to make a mistake is to not have the chuck fingers touching the lead edge of the flutes. Do this and set your depth correctly and the sharpening part is a snap. This machine also shows just how off-center some of my bits were milled. I have common wood and soft metal drilling bits that are 118 degrees so this affordable machine is perfect for my needs.
W**E
Love this Tool! Easy to use.
I needed to sharpen all my drills. I was tired of buying new ones and my eyes s ight is not what it used to be as needed for hand sharpenig on a grinder or sander. The 350X worked as advertised!! The "how to" video was an outstanding tool that made me very comfortable using the tool. The only bad thing is that once you get below 5/32" in drill size it becomes very difficult to align the chuck pins in the flutes of the drill. For this reason a rated accuracy as a 4. Everything else was a 5+!!!. Have some larger drills that id love to sharpn! Dag nab it, shoulda bought the 750! LOL! Thank you Drill Doctor, for a very cost effective tool for the home handyman.
T**8
Sharpens Bits ... Very Well
I purchased this to sharpen my case of bits. It did exactly what I wanted. The bits are all sharp now. My bits have been used over a period of about 30 years and were typically replaced with a new bit, which costs more money. This one time purchase should have been done sooner had I known it would work so well. Use of it is kind of wonky, but if you go online to watch a video on YouTube I think it will become very clear in how to use it. Once you’ve sharpened a bit or two, it becomes very easy. I think the value is definitely worth it. FYI, I do have an extensive background in construction and have a little bit of experience using drill bits :-)
P**E
Not that good poor value for money
Instructions and photographs not that easy to follow. Totally failed to sharpen masonry drills Not impressed
A**N
It does a good job.
Mine does a nice job. The angle of the sharpened drill is correct, the chisel point looks good and is well centered, and the relief is good. The sharpened drills cut wood, aluminum and mild steel with no problem, forming nice spiral swarf. The sharpener is not difficult to use - but it is not a pencil sharpener. You have to be careful that the fingers are properly located against the cutting edge, and you have to use a firm, slow, smooth motion with the chuck pressed against the roller. There is a technique to learn. On some drills I had to reset the height multiple times to grind enough away so that there was a good cutting edge. It requires practice and patience, and a good magnifier light to examine the results.
P**E
Perfect for the hobbyist
I periodically drill holes in wood and brass bars for creating knife handles. I have high quality drill bits that I bought many years ago but over the years they had become somewhat dulled and needed sharpening. This sharpener works like magic, putting a cutting tip on my bits that is better than when I first bought them. It took me a while to figure out how to properly use this machine but after I did it became a very quick and simple process to keep my bits sharp. I am very happy with this purchase and would highly recommend it to anyone who occasionally needs to quickly sharpen a drill bit.
H**O
excelente equipo, al principio se me hizo complicado el proceso de afilado, pero una vez que aprendí a utilizarlo correctamente, es muy fácil y rápido y un buen aliado en el taller
J**O
La mercancía me llego un día antes, en buenas condiciones, ya lo utilice y afila muy bien las brocas, sin duda es una buena inversión, a largo tiempo vas a recuperar lo invertido. Ampliamente recomendado.
G**N
Should have gotten one of these years ago. I do not understand why some reviewers found it hard to use, it is veryeasy. Follow the instructions carefully, make sure the drill bit is aligned properly and you'll have no issues. I think some people may not be aligning the cutting edge of the drill properly, perhaps the instructions could be even more clear on this point. I was able to sharpen very damaged high quality HHS drill bits. Makes a huge difference having sharp bits.
P**.
when you know how it works it is a very fine machine. I was not happy at all at first and almost returned the product to amazon because of instruction sheet... check videos on YouTube...
E**A
Da miedo seguir las instrucciones pero la verdad si haces cada uno de los pasos sin tratar de adelantarte, es una excelente herramienta para sacar las brocas que uno acumula con el tiempo, y poner todas en uso.