» Fixtures »Attachment to the grinder for sharpening drills with your own hands

DIY grinder attachment for sharpening drills

Hello dear readers and the inhabitants of our site!
This article will be interesting for both home and garage masters.
In it, the author of the YouTube channel "Mistry MakeTool" will tell you how to make a special attachment to the grinder for sharpening drills of various diameters at the right angle.

For the manufacture of homemade products, complex machines or a welding machine are not needed, everything can be done with a screwdriver and a saw.
Materials
- Thick sheet plywood
- Cutting boards
- Wooden beam
- Stud M6, washer, wing nut
- Metal clamps
- Second glue
- PVA glue.

Instruments, used by the author.
- Drilling machine
- ballerina
- Countersink drill
- Bulgarian, diamond blade
- Screwdriver
- clamps
- File
- screwdriver
- Set of drills
- Square, ruler, marker.

Manufacturing process.
As a basis, the author uses a piece of thick plywood. For a lining under the grinder tries on a piece of the board.



Having approximately attached the clamps, he marks the future grooves with a marker. Also marks the location for a recess under the protrusion of the gearbox.




Now extends the side marking using a square.



Having fixed the board with a clamp, it cuts through the necessary grooves using an ordinary file.
Although here she is, a Bulgarian with a stripping petal disk ... It was possible to make grooves for her as well.




Further, it lubricates the surface of the board with PVA glue, presses the clamp to the base.




Then it turns the base over, countersinks the holes and fixes the blanks with each other additionally, using ordinary wood screws.



Secures the grinder with clamps, everything seems to fit. Rubber should be placed under the clamps so that they do not scratch the tool body.




Now, releasing the clip of the protective cover, slightly expands it.



Replaces the petal stripping disc with a diamond one.



Further, on a drilling machine, with the help of a ballerina, cuts two circles from thick sheet plywood.



The thickness of plywood was not enough for the author, and he glued the circles together.





While the design looks like this.

In the center of the obtained drum blank, drills a hole for the fixing bolt. After that, sets the workpiece at an angle of 58-60 degrees, this will be the angle of inclination of the drill to the grinding wheel. And drills several holes for different drill diameters.





Now he drills a hole in the bar for the axis of the drum.



Clogs the M8 pin into it, additionally glues the joint with second glue.




Puts the drum on the axle, fixes with the wing nut through the washer. Checks the angle of the drill, and the position relative to the disc.





Now it fastens the rack with self-tapping screws, after countering the holes, so that the table does not scratch.




So, the device is ready, and the author has a drill in hand that needs sharpening.


Having started the grinder, he grinds a drill. The result is very good!





Now she is testing a drill, trying to drill a very thick steel profile pipe. Everything worked great!


Thanks to the author for interesting fixtures for the grinder!

Good mood and good luck to everyone! Sharp for you tools!
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9 comments
Author
And more specifically. Three-point drill on wood.
Author
About incorrect descents - this is with regards to the "sharpening" of the drill, rotating it with a drill. And here you can smoothly change the place of processing. And if you move the disk a little and grind the edge of the edge in the likeness of iWi, you get a feather in a tree.
Sharpening a drill is not as easy as it may seem in this article. In this device, only one angle is set — the angle of sharpening is ~ 120 degrees (since it is used in most cases), the rear angle, as well as the equality of the cutting edges are not set at all by anything, which means there is an opportunity
Downs will not work correctly
. Or, if you “grind” one of the cutting edges, the drill starts to “break” the hole (when the chips go along only one groove. Valery here once said that he can grind the drill on the grinder in his hands (by the way, I can), and so most likely it will be faster and more accurate to withstand corners and edges than using this device.
Downs will not work correctly
I understood my mistake, you're right, at the end of the drill you get a cone! smile
Downs will not work correctly
Honestly, I do not really understand how the descents in the proposed homemade product differ from the descents obtained by rotating the drill! Although, maybe I'm wrong! smile
Author
Downs will not work out correctly.
By the way, great thought! I support!
Want another one? We fix the drill, the abrasive is motionless! smile
Author
By the way, great thought! I support!
Simple useful fixture! I wanted to complicate, instead of a drum with inclined channels for different drill diameters, to punch the inclined chuck from the drill!

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