Manufacturer: Drill Doctor
Model: DD750X
Rating: 
(80 reviews)
| List Price: Offer Price: $119.00 |
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Features:
- Drill bit sharpener; sharpens high-speed steel, masonry, carbide, and TiN-coated bits
- Sharpens 3/32-inch to 3/4-inch standard twist bits and creates split points
- Replaceable diamond sharpening wheel
- Includes custom blow-molded plastic case
- 7-3/4 pounds; 3-year warranty
Amazon.com Product Description
Tired of living in a disposable world? Then check out the Drill Doctor 750X drill bit sharpener. This cleverly designed, easy-to-use tool gives new life to old, dull bits. It accepts bits ranging in diameter from 3/32 inch to 3/4 inch and works somewhat like an electric pencil sharpener: Tighten a dull drill bit into the removable chuck, then insert the chuck into the sharpener. Inside is a (replaceable) diamond wheel that quickly sharpens the bit tip. There are two preset positions for honing the two most common drill-bit tip angles: 118 degrees and 135 degrees.
The Drill Doctor 750X will sharpen high-speed steel twist bits, carbide-tipped masonry bits, and titanium-coated bits. It will even sharpen split-point bits and create split-points from standard bits. It comes with a blow-molded storage case, detailed owner’s manual and an instructional DVD. Made in the U.S.A. — Joseph Truini
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5 Comments
The Drill Dr was recommended by a friend who’s been using an older model for years. He sharpens bits for customers of his hardware store and just swears by it. Based upon his advice and experience, I chose the DD750X since I have a lot of bits larger than 1/2″. If you need to sharpen larger bits, definitely get the coarse wheel to get the bit sharp, then use the fine wheel for the final edge, otherwise it’ll take forever.
I’ve sharpened from 3/32″-3/4″, split points and have had no trouble at all. It’s a breeze to sharpen a bit now.
I got the 750X as an early Father’s Day gift. As a wood worker who builds fairly intricate projects, I’ve spent quite a bit of effort to build an auxillary table and fence with stops and other jigs for my Walker Turner drill press, in order to provide accurate positioning. Then I would proceed to drill holes with less than perfect edges, due to my old, tired drill bits. The Drill Doctor has fixed that problem.
After reading the manual, and watching the excellent DVD, I went out to the shop, set my holder with 32+ bits in front of me, then proceeded to put a very sharp edge on the points of all my bits. two hours later, no more rough holes in my projects! Then it only took another ten minutes to clean all the metal and diamond dust out of the main unit and the chuck.
For all the bits 1/4 inch and up, I used the split point feature. Now my holes drill on the center where I intend them to be.
The sharpening experience:
I started with my 1/4 inch bit and then proceeded with the smaller ones. I even dared to sharpen my 1/16 inch bit, which is one size smaller than Drill Doctor says it supports. A strong magnifier confirmed it was even and sharp. Then I started sharpening up from the 1/4 inch bit.
I did sharpen several bits at and above the 1/2″ bit. The machine started to get warm at the one hour mark, but continued to work just fine. The 3/4″ bit took 60 turns with the standard grit diamond sharpen.
I will take other posters’ advice and invest in the 100 grit diamond wheel, and get a second standard grit wheel while I am at it.
A friend of mine came over who had taken his bits to a pro to sharpen. 24 bits had cost him somewhere close to $60. He thought mine were as sharp and as accurate as his. I guess I start coming out ahead, the next time I go through another sharpening cycle.
Using even, light pressure, and keeping the chuck against the metal post guide might be why I came out with such a great result. I was also vigilent to maintain an even count with my half-turns on the chuck lobes, per the instructions.
I can’t say enough about viewing the DVD only AFTER I had gone through the brief, but complete manual. It reinforced what I had read, and provided the visual experience needed for me to feel confident enough to begin using the tool.
Now, obviously a woodworker’s perspective on this tool is going to be a little different than a precision metal worker. But, if you are a fine woodworker, it is my contention that you will find this to be a great additional asset to your tool sharpening arsenal.
Sound a little like the sales guy, huh? I assure you I am just a non-biased, amateur wood worker, who apreciates anything that makes my work easier, and more accurate.
Like so many others, I had collected hundreds of dull drill bits. After “mastering” use of the tool, which took all of 30 minutes, I sharpened them all. Almost as good as having new bits. Now, I can pull out the DD and sharpen a single bit, in just a few minutes. Since sharpening a bit shortens it a tad, the primary reason for replacing drill bits now is when they are too short, or I break one.
You might want to try sharpening larger bits first, as they are easier to get into position. With practice, you should be able to sharpen bits as small as 5/64″. (1/16″ bits are too small for the supplied bit holder, so you’ll have to buy replacements.) The machine works the same for hex-based bits and round bits.
The instructions say that when the grinding wheel wears down, take it out and turn it over. However, the wheel on my unit wouldn’t come off, so I called Drill Doctor’s Hot Line. A lady technician answered the phone on the first ring! She advised me to put the whole thing in the freezer for 30 minutes — no kidding — then it would pop off. Sure enough, it did. Great customer service.
Reviewers of other Drill Doctor’s have complained that their tool is mostly “plastic”. So what, this one seems plenty sturdy to hold up for years of use.
“Sharp” means nearly razor sharp. Not like new bits, which are typically blued or otherwise coated. After sharpening, bit ends are finely honed at the proper angle. I’ve had a Drill Doctor for several years, and have used it at least a hundred times — this is definitely a 5-star tool.
I have had four different drill sharpening guides. None have worked any better than holding the bit on the side of the grinding stone until now. I bought the larger wheel which works very on larger bits
This bit sharpener does a great job sharpening my drill bits. It’s flexible and versatile. The only problem is that 1 in every 4 or 5 bits isn’t quite as sharp as the others, but that may be due to operator error. Well worth the price.