Features

• Holds left-handed (reverse twist) 3/32" to 1/2" drill bits
• Fits Models 500 and 750 only

Subjects:  1. Bit Sharpeners   

Features

• Diamond wheel sharpens 3/32in. to 1/2in. standard twist bits
• Sharpening time: 30-90 seconds depending on bit size and amount of wear
• Sharpens High-speed steel, masonry, carbide, and TiN-coated bits
• 20,000 RPM motor for faster sharpening
• 118° drill point angle

Features

• Three layers of nickel/diamond plating to provide long life
• Expect 200+ sharpenings from this sharpening wheel

Editorial Review

Instead of throwing away old, dull bits, give them a checkup with the Drill Doctor and extend their life. Although drill-bit sharpening systems often fail to live up to our expectations, we're here to bear witness for the truth of the Drill Doctor's claims: it really does sharpen old bits in just a couple of minutes. The 750SP (also known as the Professional) works on conventional, split-point, and masonry bits from 3/32 to 3/4 inches in size. If you don't plan on sharpening anything larger than 1/2-inch bits, we recommend getting the 500SP instead; it's basically the same machine, minus the cost of the 3/4-inch chuck that comes with this model. Both models--the 500SP and the Professional 750SP--allow you to choose between a 118- and 135-degree sharpening angle. Operation is fairly simple, but to make sure no one has trouble figuring it out, the Drill Doctor comes with a how-to video. Anyone who frequently wears down drill bits is going to appreciate the savings this handy machine can offer. Using sharp bits instead of dull ones also increases the life of your drill, because sharper bits require less work to make the same hole. We only wish we'd found the Drill Doctor sooner. --Brian Trinen ... Read more

Features

• Sharpens conventional point, split point, and masonry drill bitat 118- or 135-degree angles
• Two chucks accept 3/32- to 1/2-inch and 1/2- to 3/4-inch bit shafts
• Long-lasting Diamond wheel sharpens carbide, high-speed steel, standard, cobalt, and more
• Comes with how-to video

Reviews (38)

Drill Doctor DD750PK
I ordered my Drill Doctor on Friday, 01-28-05 and received it on Monday, 01-31-05.What wonderful service from Amazon.com!
I watched the included video and read the manual and then decided to give it a whirl.My first bit, a 1/2 inch, was perfect!I even checked for accurate centering using my depth micrometer.It was right on.I proceeded to do 24 more dull bits down to a number 40.All came out perfectly.This took about an hour or so.
The only problem I experienced was with small shorter bits.They do not pass through the end of the chuck far enough to turn them with your fingers for proper alignment.I overcame this problem by leaving the chuck not seated on its flats and closeing the alignment paddle gently while slightly rotating the chuck until proper alignment was achieved and then carefully seating the chuck and then tightening it.That took a little practice but the number 40 bit only took three attempts to get it right.I would recommend using a magnifying glass to inspect bits under 1/8 to be sure that they are sharpened correctly.Perhaps the Drill Doctor folks will come out with an additional chuck to handle the smaller sizes better.
Overall, I would recommend this precision tool to anyone who drills many holes and always should have a sharp bit.Well, back to sharpening more bits!

Works as advertised
My sharpener is used mostly for small 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.They 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.

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 only reason for replacing drill bits now is when they are too short, or I break one.

One reviewer complained that the tool is mostly "plastic".So what, it 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 shapening, bit ends are finely honed at the proper angle.I've had a Drill Doctor for a couple of years, and have used it dozens of times -- this is definately a 5-star tool.

Drill Doctor Drill Bit Sharpener
I think it is overpriced. For the cost, and in my situation, it is easier to just buy new bits.
... Read more

Subjects:  1. Bit Sharpeners