The reviews are automatic translation.
Alternative to Holesau
On 2018-06-12 14:01:17
Drilling was easier than drilling a hole in a thin steel plate.
Connector processing etc. at wiring work etc.
On 2018-03-25 13:58:32
We use a hole saw for drilling into sheet metal, but we use it because the step drill (bamboo shoot drill) is convenient for processing to a resin box and addition to a connector.
This time, I bought the type of φ21, φ22 additionally.
Although I have not used it yet in full swing, I felt it was sharper than a normal two-blade when I used it for testing.
When installing the equipment stand
On 2017-09-09 14:41:32
You do not need a pilot hole and you can go bursting without dirty powder
I will buy it again
On 2017-06-28 19:41:47
The price is cheap, it goes well and it is easy to use. You do not have to arrange as many drills as possible.
Drilling of steel materials
On 2017-06-05 15:48:53
I extended the 3.5 mm hole to 10 mm. Good sharpness.
On 2017-01-31 17:16:47
Sharpness of the tip is not so good, if the tip passes through, it is perfect sharpness, if the tip is out of moonlight, it is perfect.
Pen impact, as the blade of the drilling machine (conventional handler replacement)
On 2016-12-17 22:35:56
There seems to be some imported cheapest hundreds of yen now, but in the case of amateur use these things dare to choose the latest one whether it will not be replaced for 10 years. It is not certain whether it is for 4 blades, but I think that I bought a convenient one if I could enlarge the hole lighter than handdermer (for ironworkers).
On 2016-11-19 15:13:18
I am satisfied that it has expired more than I expected. It was very good.
Drilling of aluminum plate
On 2016-08-12 08:55:42
Sharpness, the absence of burrs after cutting is good