The reviews are automatic translation.
On 2013-12-27 17:58:27
I think that it is easy if the drill blade's proper way of applying (angle) can be done, but my sharpened blade can not be cut yet.
Drill Blade Play / Modify
On 2013-12-13 14:31:23
I was a bit puzzled because the usage method was not described in detail, but it is easy to handle because angles are uniformly and easily aligned
Regain polishing of household drills
On 2013-12-11 17:52:54
Although I could not see the position adjustment well from the first table (groove side), it was easy to put out parallels as seen from the back side, and it was able to re-polish well. It will be easier to use if there are holders such as springs to prevent the drill from floating. I have sponge rubber on the side bar.
I challenged the cutting edge of φ5 drill, but I could not understand and could not use it.
On 2013-06-07 12:28:12
Even if you grind only the part of the edge shape "ha", is it meaningful? On the contrary, the sharp part of the tip is scraped off, and the sharpness becomes worse? I can not understand it at all. If you have practical experience, it will be appreciated if you can tell me. Although I tried many times after purchase, I am playing in a state that I can not use yet.
Polishing of drill blade
On 2012-04-25 18:38:14
I purchased it because I thought that there was practicality because I could sharpen the cutting edge which I could not cut at the work site. Since I have not used it yet I am worried about whether it can be done properly.
Work to sharpen the drill
On 2012-03-15 19:36:27
Because there are people who can not use it.
First, look at the edge of the tip of the drill with a loupe and mark it with a pen around the axis of the drill somewhere that is perpendicular to it.
Since the cutting edge should have two positions on the left and right (?), Mark another point as well.
I will set a drill in the groove of this product.
In that case, set so that the attached mark will come up.
If you press the drill lightly against the grindstone (it may be even better if you look at the contact condition of the grinding stone and the cutting edge with the magnifying glass), "turn the grindstone with your finger." (Power tools are not essential for sharpening the kitchen knife)
It may be better to check whether the cutting edge is properly ground after a little sharpening.
If the cutting edge does not seem to be grinding, it would be better to tilt the mark a little.
With that feeling we polish both left and right (?).
In some cases, it may be better to thin it before polishing.
I tried thinning processing by looking at the 2 mm drill with a triangular diamond file, and the biting improved.
Since it was used for drilling a hole in a printed circuit board (Bakelite plate) with a drill of Ø 0.5 mm to 2 mm, we do not know whether the above is sufficient when punching holes in iron or aluminum, It may be that a problem may occur, but I do not know the neighborhood.
However, obvious improvement was seen.
Things that could not be trimmed off by sharp scratches just by turning with fingers.
For me, you will make something that works with a spring. I think that it will further reduce the rotation speed with the gear.
The electric drill is too big, and such power is unnecessary.
I do not know if it is about Φ 12 mm, but the knife can be manually ground even though there is more blade width.
If you want to attach a rotary tool, it will be on the side of the drill.
Is the grindstone too soft? The whetstone deforms immediately.
Does it mean that the fine electrodeposition diamonds are fine?
Even if you do it with a grinding stone, you will suppress the bubble ratio and make the base material hard, it feels like something.
I turned the whetstone with my fingers, but there is one advantage and the grinding stone moves somewhat in the direction of the root from the beginning, but using that we can move it somewhat with fingers so as not to scrape off at one point of the grindstone .
I think that it is better if the contact surface of the grindstone moves while turning the axis of the grindstone as a screw.
Polishing of drill blade
On 2012-02-24 13:06:43
I tried to polish a drill that was a bit sharp, but it turned out to be a drill that could not be cut down. I would like you to tell me if there is a good way to use it.
End polishing of steel drill
On 2011-10-05 15:31:20
There is no use for anything. There is no use as much as you want refund. If there are people who can use it well, I would like to see the work.
On 2011-08-10 20:40:33
Postscript. I had to try and grab the hammer many times to successfully sharpen it. I fixed the drill, stabilized the rotation at low speed, and practiced how to apply the blade.
On 2011-07-22 22:29:10
Evaluation of others is not good, but it is not expensive, so I dare tried it. The sharpness of the drill blade improved greatly. If you have a retry.