Engineering students are really hard on drill bits, and I was looking for an alternative to constantly replacing the high performance bits we use for 316SS and alloy steels. The department had a top-of-the-line Drill Doctor that several (including me) had tried to figure out, but it was cheaper to just replace the bits than to pay an employee to stand there fighting with that machine. This machine paid for itself within about six hours of sharpening -- see attached photo. This included the time it took to educate a student on the science behind the geometry of drill bits. Even the really bad bits (overheated, completely rounded off) could just be roughly ground back on a bench grinder and reshaped on this machine within about 5 minutes. The split point cut is also very fast and easy. Two negatives: First, the instructions are insufficient, but there are some good videos available (the one on the product page is good). Second, the split points aren't very consistent. It seems to depend on the size and how well it fills the collet--specifically, a bit on the high side of a certain collet's capacity seems to split better than one on the lower side of the same collet. It somewhat affects how consistently the bits tightens in the collet holder. So, it may just be a matter of learning curve. Overall, I'm very pleased. These bits aren't quite factory-quality sharpened, but satisfactorily sharpened for what we do. I've pushed a resharpened 1/2" bit through 1/2" steel plate with no problem, and they cut evenly when boring on a lathe.
Was a machinist back in the 70's. But since then have been more of a home hobbyist. I used to sharpen my drills by hand with the aid of a drill angle guide. Then I found the Drill Doctor and thought that would make a dreaded task much better. That thing is plastic junk. A LOT of guesswork. Then I saw the YouTube review of this machine by Tubalcain. Decided to bite the financial bullet & get one. Well, (other than the cost) this thing has been an answer to my dream of an easy to use & PRECISE drill sharpener. Heavy duty, made entirely of steel. (Made like the US USED TO make things). Dead on exact drill bit sharpening every time. It is made & designed in all metric but that's not a problem. Just pick the collet that fits the drill, align the drill, and sharpen. Hate the price but LOVE the machine. (I gave away my Drill Doctor).
Home shop machinist
A very well made drill sharpener for metric or imperial up to 13mm/1/2” and as small as 3/32”. Quality of grind is very good as well as web relief on point, so far I have only ground 118° drill bits but I am sure grinding 135° or other required angles will be just as effective, the included diamond wheel does a pretty good job on carbide but I would like to locate a finer grit for a more smoother finish. Instructions are a bit vague, and really difficult to translate actions to actual use but get you to the basic functionality. One needs to experiment a little to achieve an accurate grind. I really don’t think anyone offers a robust drill grinder in this category and price point. I recommend this tool.
Awesome Drill Bit Sharpener
This is one of those things I wished I would have bought sooner. I have had numerous other "sharpener" but they all lacked. Not this one- It works great and my bits turn out sharper than brand new. Highly recommend to everyone.
Does a good job of sharpening drill bits
Used Drill Doctor in the past with mixed results. Saw review of this sharpener on Youtube. Good results. The instructions are terrible but there are a good number of Youtube videos showing the intricacies of aligning the bit in the mandrel. Once this step is mastered, the rest is easy. Great results. Sharpened 3, 29 bit HSS and cobalt sets with ease. Price is 3x drill doctor but I use a lot of drill bits doing my home hobby fabrication and I think it is worth it.
Save those expensive twist drills and end mills!
Sharpens well, setup has a bit of a learning curve. I found trying to sharpen 3mm & 1/8” sizes or smaller, it will just blowup the bit. Need more time with it, but it does a great job. Full disclosure, I have not tried endmills YET.
It works very well for BOTH SAE and Metric drill bits.
I do not know if it will sharpen end mills BUT it does sharpen drill bits from 1/8" to 1/2" as well as metric sizes,It is simple to use, nearly foolproof and it seems to do the job very well. When sharpening larger drill bits it seems wise to me to go slowly to allow the CBN abrasive to do the grinding, not your muscles. My only criticism is where do I find spare parts? It is a long way to China and with current shipping delays and costs getting replacement grinding wheels is a real problem. I tried the Tormek DBS22 and in 5 hours I sharpened 5 bits. But with this machine, i sharpened 5 bits in far less than 10 minutes. Just understand that getting grinding wheels is a hassle. I need one as I was careless and flaked off a bit of CBN back beveling an 1/8" bit so take your time with very small bits. Perhaps even skipping back beveling. I found my on another site for less including tax so it pays to shop around. A final note - this machine is sold by a great number of companies with designations such as 12A, and 13B. But it seems many are made to near identical standards.
Great sharpening machine
I was having a hard time staying consistent when hand sharpening drill bit. This machine brought all my bits back to new condition. Well worth it.
Awesome little machine
This rocks and saves my shop lots in cash