The reviews are automatic translation.
On 2018-06-20 16:33:29
Good sharpness, drilling cleanly and quickly, work efficiency was good.
On 2018-05-27 22:46:09
Though it was smaller than I imagined it is handy. After that, how much you have is the point.
I used it to break the keyhole.
On 2018-05-11 21:00:44
I was broken immediately after using it, because the object to be used was bad. Moreover, a broken tip remained in the object, and I felt a lot of trouble.
I used the drill as slow as possible and used while using enough oil, but the tip broke at about 2 cm.
I feel attracted to the word of cemented carbide, but it will be saved if you explain to a certain degree what kind of object to use.
It is not cheap at all, so thank you.
Used for casting
On 2018-05-09 15:21:16
Too bought because it is cheaper than the manufacturer's product too
However, it was too weak for cemented carbide and it was the same as high-speed steel.
Products compared to OSG Yoyama
On 2018-05-06 09:07:02
It was played with a normal iron drill and I could not drill at all and I tried purchasing it.
A hole opened easily when you tried it immediately.
It's amazing. I will also buy more thick type.
Automobile sheet metal relation
On 2018-05-01 01:47:52
I bought two for a review that I can use normally, but unfortunately I lost it soon. I guess weak weak.
Pilot hole of bolt extractor
On 2018-04-24 15:43:28
It is used for processing the prepared hole of the extractor in order to extract broken bolt.
Inch screw medium strength 3.5φ of this product is used for 5/16 (8 mm). I digged 3 millimeters and the cutting edge broke. We also used tapping oil. Defect quality. I could not even disposable. It is better to buy it directly from China directly at eBay.
Purchased to enlarge the bore diameter of the burned metal.
On 2018-03-17 15:49:15
While increasing in size by 0.1 mm each before, it was expanded with an ordinary drill blade, but it took time and the drill blade was useless after one use. The carbide drill blade was slightly expensive, but I realized that the effect was satisfactory.
Primary machining of machine parts
On 2018-03-11 18:16:46
I use it to expand the hole diameter of SUS material, but it is super hard and it is outstanding sharpness. I want to use it again.
For car maintenance
On 2018-02-15 13:57:15
There was only cemented carbide, cutting was preeminent.
Longer life, sharpness is also sustained.