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Drill Bit Sharpener, 118 Or 135 Deg

4.5 out of 5 stars 1,218 ratings
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Amazon's Choice in Power Drill Bit Sharpeners by Drill Doctor

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Enhance your purchase

Material Carbide
Brand Drill Doctor
Item Dimensions LxWxH 13.75 x 5.75 x 11.75 inches
Tool Flute Type Spiral

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  • Knobs, Handles, Workholding & Machine Tool Accessories
  • Country of manufacture: United States
  • Manufacturer: DRILL DOCTOR
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  • Drill Bit Sharpener, 118 Or 135 Deg
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  • Forney 20857 Tap Magic Industrial Pro Cutting Fluid, 4 oz
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  • Drill Doctor DA31320GF 180 Grit Diamond Replacement Wheel for 350X, XP, 500X and 750X
Total price: $128.02
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From the manufacturer

Resharpen your drill bits and drill better holes
family owned, usa made, usa company, oregon, ashland
350 drill bit sharpener 500 drill bit sharpener 750 drill bit sharpener
Drill Doctor 350X Drill Doctor 500X Drill Doctor 750X
Ideal For Entry level/ Hobbiest DIY'er to Professional Professional
Drill Bit Types Carbide, Cobalt, High-Speed Steel, Black Oxide, TiN-Coated, and Masonry Carbide, Cobalt, High-Speed Steel, Black Oxide, TiN-Coated, and Masonry Carbide, Cobalt, High-Speed Steel, Black Oxide, TiN-Coated, and Masonry
Drill Bit Twist Point Angle 118˚ 118˚-135˚ 115˚-140˚
Drill Bit Size 3/32″ to 1/2″ Twist & Masonry Bits 3/32″ to 1/2″ Twist & Masonry Bits (Optional 3/4″ Chuck) 3/32″ to 3/4″ Twist & Masonry Bits
Adjustable Chisel & Relief Angle
Creates and Restores Split Points

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Customer Rating 4.5 out of 5 stars (1218) 4.2 out of 5 stars (343) 4.3 out of 5 stars (445) 4.1 out of 5 stars (31) 3.8 out of 5 stars (6)
Price $99.95 $25.90 $23.72 $59.99 $1,615.90
Sold By Amazon.com Amazon.com Amazon.com Goodsmann Group Travers Tool Co., Inc.

Product description

Product Description

Easily sharpen a full range of bits including split points and bits used in drilling hardened metals with the Drill Doctor Drill Bit Sharpener DD500X, featuring a replaceable diamond sharpening wheel. Includes variable alignment allowing for simple adjustment of chisel and relief angles and conveniently creates split points from standard points for faster penetration and less drill bit walking. Designed for sharpening 3/32" to 1/2" bits and ideal for sharpening high speed steel, masonry, carbide and tin coated bits.


Make work faster and easier while saving yourself money sharpening your dull and broken drill bits with the Drill Doctor 500X 3/32- to 1/2-Inch Drill Bit Sharpener. This easy-to-use system makes it simple to keep a sharp, perfectly angled cutting edge on bits you use often, and it can even be used to put an edge back on broken bits.

Sharp Tools Perform Better and Are Safer to Use
Whether you're a professional tradesperson or a serious hobbyist, you know that a dull drill bit means jobs take longer. Additionally, dull bits can result in lower-quality work, damaged work materials, and shortened drill life. But unlike the relatively straightforward task of sharpening flat blades, sharpening drill bits by hand can be a difficult and cumbersome task. This is what makes the intuitive, easy-to-use Drill Doctor sharpener so useful.

Three Easy Steps Ensure Bits Are Sharp and Effective
With the Drill Doctor 500X, you simply align the bit by setting it against the stop and locking it in place. To sharpen the bit, you turn the chuck an even number of half turns, depending on the size of your bit. As you sharpen, long jaws hold the bit precisely in place, and jaw guides eliminate jaw twisting on small bits. This secure alignment system ensures that you maintain accurate bit geometry and don't damage the integrity of your tools.

Once the bit is sharpened, the Drill Doctor 500X gives you the option of making a unique BACK-CUT spilt-point bit that gives your bit an extra-narrow chisel point, making it faster to penetrate and less likely to wander on the material you are drilling in to.

Additionally, the drill point splitting port offers a "Push to Stop" design that will prevent over-splitting the bit point.

Engineered for Versatility and Flexibility
The same chuck can be used to sharpen popular bit sizes from 3/32- to 1/2-inch, whether they are English, metric, or letter gauge bits. The Drill Doctor 500X sharpens a wide variety of bit types, from high-speed steel, carbide, cobalt, TiN-coated, masonry, and split-point bits for working with metal.

Professional Design and Construction for Durability
For added durability, the Drill Doctor 500X features a metal split-point port, and a die-cast point angle shuttle. The tool relies on a permanent-magnet motor that produces consistent power, regardless of speed or load.

The Drill Doctor 500X also relies on an industrial-strength diamond sharpening wheel that won't change shape over time, and a cool design that means bits don't heat up and lose their tempering as you sharpen them. This wheel, which is good for about 200 sharpenings, is easy for users to replace.

The Drill Doctor is backed by a three-year manufacturer’s warranty.

What's in the Box
Drill bit sharpener, user guide, and instructional DVD.

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Product information

Technical Details

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WARNING: Reand and understand all safety operating instructions found in the power tools owner's manual.


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Customer reviews

4.5 out of 5 stars
4.5 out of 5
1,218 global ratings
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Top reviews from the United States

Reviewed in the United States on June 23, 2018
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122 people found this helpful
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Reviewed in the United States on January 24, 2018
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43 people found this helpful
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Reviewed in the United States on October 12, 2018
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5.0 out of 5 stars Follow the instructions in the video for the best reshaping and sharpening of your bits!
By Mike K on October 12, 2018
Was excited to get this today. In my profession I use a lot of drill bits and after a while it can get quite expensive having to buy new ones to replace the broken or dulled one. Following the instructional video I was able to sharpen a small 1/8” bit, a broken off 3/16” bit (once you get the basic shape realign the bit again so your cutting it at the right angle), and I sharpened a Dewalt pilot point 3/8” bit back to a normal bit after the stepped portion had dulled. Over all this product is awesome! It’s going to save me a lot of money that’s for sure! Haven’t tried a masonary bit yet.
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25 people found this helpful
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Reviewed in the United States on September 2, 2017
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24 people found this helpful
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Reviewed in the United States on August 15, 2020
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5.0 out of 5 stars No need to buy drill its ever again!
By Allen D. Reinecke on August 15, 2020
Just received this today and very pleased with this purchase. Despite some other reviewers comments, the instruction manual is comprehensive, easy to understand and fully explains the operation of the Drill Doctor. I had no trouble setting up for 118 or 135 degree point angles.
I resharpened some 34 drill bits from 3/32" to 1/2" that were blunt and changed one from 118 degrees to 135 with a split point. It took about 1 hour and 15 mins in total. After, they all were sharp, exactly to specification and cut through wood and steel like they were brand new. The 135 deg split point drill bit I cut (5/16") produced the perfect Curly Q's as shown in the photo, when cutting through a 1/4" mild steel bar with my drill press.
I've always tried to hand grind my drills or bought new. While they were fairly sharp and drilled OK after my hand grinding, they certainly looked hand-ground and weren't like a new drill bit with a well-defined chisel edge, relief angle, even cutting edges and a perfect point angle. With a couple minutes work in the Drill Doctor, I have perfect bits.
Points to note:
- The 135 deg point angle setting is the one notch to the right of the 12 o'clock positioned 118 degree notch in the alignment port. The other 10 deg notches are to fine tune the chisel edge and relief angles, which 99 times out of a 100, you won't need to adjust.
- Make sure the spring steel jaws in the alignment port snap into the drill at its narrowest point across the width of the flutes. Rotate the drill bit as required to make this happen. This ensures the correct angular position of the bit in the chuck for grinding.
- After finger snugging the bit in the chuck in the alignment port, remove it and hand tighten. That way the drill doesn't move from its perfect alignment for grinding.
- Keep rotating the chuck in the grinding port with light pressure down and keeping the chuck against the cam pin, grinding until the grinding sounds stop occurring. The bit at that point is fully ground.
- Eventually the grinding wheel will wear down. You can remove it and turn it around to get another 100 or so drills sharpened before having to replace the wheel for about $20. After doing all my 34 drills, I could feel that the roughness of the grinding wheel was less that the other unused end, but it was still easily capable of grinding bits.
- Grinding dust does spill out onto the bench through the gaps around the transparent cover under the grinding wheel. After all my bits, I had a tiny heap on the table, with more inside the machine. I cleaned the Drill Doctor before putting it away, per the instructions.
- Don't mash the bit into wheel, especially for making the split point. Treat it gently and pulse it until the sound stops.
I've now got a way to have sharp drill whenever I need them. I always had to make do or go buy yet another drill bit.
The Drill Doctor is not a cheap tool, but it is well-made and sturdy. Once you have it, you can really appreciate its value. No regrets at all. I will never need to buy bits again until I've worm them down to an unusable length and by then, that will have paid back the cost of the Drill Doctor many times over!
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7 people found this helpful
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Top reviews from other countries

4.0 out of 5 stars Great sharpener but beware you need the coarse stone for cobalt bits.
Reviewed in Canada on November 21, 2016
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4 people found this helpful
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Marcel Thomassen
5.0 out of 5 stars Excellent tool
Reviewed in Canada on December 17, 2018
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2 people found this helpful
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Scott Kammer
5.0 out of 5 stars Works excellent! Very happy!
Reviewed in Canada on August 5, 2020
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Cliente de Amazon
5.0 out of 5 stars Excelente producto y atención de Amazon
Reviewed in Mexico on March 25, 2019
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5.0 out of 5 stars Works as advertised
Reviewed in Canada on June 17, 2014
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2 people found this helpful
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