VEVORDrill Bits Sharpener, 3-13mm Drill Bits Grinder Sharpener, Lip Relief Angle & 95°-135° Point Angle Adjustable Drill Bit Re-Sharpener, Portable Sharpening Machine with 11 Collets, CBN & SDC Wheel

After re-sharpening a couple of dozen 118- and 135-degree drill bits, I'm generally impressed with the results. Grinds are symetrical, bits cut evenly on both faces, holes have minimal "wobble". The included instructions are pretty useless -- you'll need watch a YT video to get up to speed. The collet collection covers 1/8 - 1/2" bits. Collets are ER-20 and ER-25 style. Dialing-in the bit-diameter (web-diameter) is pretty low-precision -- the alignment arrow is an inch away from the dial. My biggest complaint is safety-related: while grinding the point angle on the side port, the abrasive wheel is visible in the top port and it's pretty hard to find a position that's out of the "line-of-fire". Eye/face protection is a must, and the same goes for respirator masks. The collet storage is okay (unless you transport the sharpener 'cuz all the collets will fall out of their retainer holes) but there's no place to put the workholder, kind of a big oversight IMO. All that aside, the unit consistently delivers sharp, well-formed drill bits, which, if you'll excuse the pun, is the whole point.

This is the coolest tool I own! (and I have alot of tools) Very well made and easy to use. Sharpens drill bits from tiny up to3/4". Puts and amazing sharpness on bits. Takes 1-2 minutes to use per bit. We have lots of bits in a plastic tub that have been waiting for this machine for years. It can pay for itself . I have an old DRILL DOCTOR. I threw that in the trash! Do not mess around. Get this one. Well made and solid. Packed well...Fast shipping. Nice to find a new tool that is engineered well and fun to use.

Positively one of the best purchases I've made to date on amz. Solid and well built, super heavy but small, all in one , 3 step drill (bit) workstation. Directions- spare and minimalist but you tube explains if any questions. Didn't know why I was doing the 1st step, just did it with Pro results first try. Light years ahead of the dirt doctor with no crummy plastic parts. Solid pro feel and even has a fan inside. Maybe to blow the dust away as it sharpens, it certainly blew me away.. Incredibly accurate if you read up a little on drill bit sharpening, and gives a factory finish when you're done, but who cares what it looks like. I was more taken aback with the dramatic performance difference after resurrecting my milwaukee drill bits presumed dead . Case in point, used a not so used Milwaukee 3/8 standard 116 deg drill bit that could not make a dent in a piece of hard metal that needed 2 holes deeper than a step bit, even pushed down with excess force and still no progress. So, it was high time to finally get a drill sharpener. 1st heard about this 'vevor' on a video from a very intelligent machinist, and although I was dubious thinking someone paid him off, took the gamble anyway and purchased. Influenced no, convinced yes. 1st thing i did was run this quality but dead dull throwaway drill bit thru the vevor, taking all but 2 min, skeptical still until I placed it in the drill and watched it chew right on thru that metal like a rabid dog hungry for more, producing a continuous metal shaving like you'd see with wood, Not metal. It was effortless, ez on the drill and once it started it still chewed on thru with just the weight of the drill. I'm convinced these bits weren't even this good when 1st used brand new from the factory.Bottom line: No more wasting of quality drill bits gone dull after 1 or 2 hard uses.

The Vevor 13B is one of those rare off-shore products that really works, and works well. Right out of the box I was able to take a cheap drill bit I had on hand, sharpen it and put on a split point (technically thinned the webbing). The sharpened bit easily drilled through some 3/16” plate steel with little effort.The Vevor is sturdy and well made, and the collet has close tolerances so it fits snugly in the sizing and grinding openings. I took off a star for the almost complete lack of included instructions and the horrible (nonexistent) support on the Vevor website. I asked a fairly simple question, and after 4 days of AI-generated blather I turned to Youtube where I found several excellent videos describing the differences between the 13A and 13B, as well as tutorials on how to use the machine. The Vevor works so well that it actually takes longer to watch the videos than to sharpen the bits yourself. But watch the videos, they make using the Vevor a snap.Overall the Vevor 13B is excellent addition to my shop. I hate dulling a bit on a weekend night and having to spend 30’ driving to buy a new bit, or waiting until the next day if the stores are closed. This takes 2’ and I’ve got a new bit ready to go.The obvious comparison is the Drill Doctor. I have a Drill Doctor, but it is a toy compared to the 13B, and costs almost as much. No comparison, the Vevor consistently produces an excellent finish and a fast cutting bit. The Drill Doctor takes longer and is not as reliable; in my hands about half the time I have to take a 3rd or 4th pass with the DR, and sometimes even that does not make a useful bit. With the reliabilty of the 13B bit, the DR will go on marketplace or the scrap heap.