The reviews are automatic translation.
For car maintenance
On 2018-02-15 13:57:15
There was only cemented carbide, cutting was preeminent.
Longer life, sharpness is also sustained.
Purchase to drill large clip
On 2017-12-17 16:08:18
Because the clip was spring steel, it was unsuitable for the purpose with the chipping of the cutting edge
Repair of heavy equipment
On 2017-10-26 18:44:33
It is a repair shop of a heavy equipment.
I attempted with this monotaro cemented carbide drill so as to drill a broken bolt at the time of disassembling the backhoe traveling motor, but when broke in 2 mm and broke so as to crush it.
I changed it to the cobalt Masami drill I had purchased at the same time without any inquiries, I could drill a hole without any excavation and the difference in the product clearly came out.
I regret that I should have trusted the review of the monotaro hard carbide drill before purchase more.
\ 2581 drill breaks in 2 seconds, and \ 928 drill works in a kitchen work, it is not usually the opposite.
EX with broken stud bolt
On 2017-10-05 14:25:13
The sharpness was preeminent to be surprised. Although it was used for a stud bolt with a burned 6 mm burned in, it was able to be cracked as if cutting aluminum, but ... after penetrating Pakin ... broke. I gave up because the price is price but I want a little more durability.
Steel punch drilling
On 2017-08-02 12:07:44
I expanded the hole of the quenched steel material.
In the review of the other person, durability is a problem, and it is purchased with half duplex.
Taking care of the number of revolutions and feed of the blade, the temperature of the cutting edge, I managed to finish the work somehow.
With the ones on hand, it was saved, although the blade did not stand like a character.
I used it for drilling work ... · · ·.
On 2017-07-26 18:32:58
Because there were no open holes in the baked items, I thought that it was cemented carbide but I thought it was a bit expensive but I bought it. Although drilling itself was okay, I used an adapter to the impact drill and used it, I broke it in the fourth hole. Was not it suitable for impact drill? It was a bit disappointing.
Drilling of super steel parts
On 2017-07-05 23:30:05
Although I tried various drills, I could not drill work, I thought that it would be possible if a super steel steel drill was possible but it was slightly expensive, but I bought one hole opened (not perfectly penetrated) It is regrettable that it will break apart in the middle of the second hole and it will not be used. Is it a Chinese product?
Drilling of steel plate
On 2017-06-30 18:02:02
I arrived today and I pierced the plate with 6 mm thick steel sheet quickly, but I could smoothly drill the 1st piece but the sharpness fell off in the middle of the 2nd sheet, and I started to drill a continuation again As a result, the carbide drill has broken apart. I was disappointed with the product without durability.
On 2017-06-21 17:02:42
Since it arrives immediately after ordering, you can order with confidence at the time of emergency.
Agitator Bearing Horizontal (iron casting) It was used for drilling of a thickness of 6 to 7 mm.
On 2017-05-19 17:50:42
Before the hole opened, a lot of lateral shake broke. Next I made the same hole with the long drill I purchased, but I could open it very smoothly, so the quality may not have been good at first. I expect improvement.
On 2017-05-01 08:54:45
It can be bought and is saved with cheap price. We will also purchase.
Drilling of titanium plate
On 2017-04-06 16:22:04
Although it takes a long time with the drill for the titanium plate 6 mm, it takes a lot of time with the drill for the stainless steel, but this carbide drill is completed drilling in a blink of an eye in a blink of an eye. With a single drop of stain drill oil, it also got accurately punctured even without a pilot hole.
On 2017-03-24 15:49:48
Although it is used for drilling aluminum, there is no problem. I am happy that the price will be a little cheaper!
Drilling into stainless steel material (t ≈ 4.5 mm)
On 2017-02-22 20:50:02
It was expanded from 10 mm downhole to 8 mm. I managed to open up the six holes, but I felt that the bite was right now. However, machining is an amateur, so it may be a problem with the way of work.
Drilling into stainless steel material (t ≈ 4.5 mm)
On 2017-02-22 20:46:01
I tried to spread from the 10 mm to 10 mm pilot hole, we opened up to 4, but the blade edge became blunt and could not be cut with the 5 th. It is not much different from the HSSCo drill. However, machining is an amateur, so it may be used in a bad way ....
On 2017-02-14 19:02:36
Even with hardened steel, it was possible to process without difficulty. Even with a tabletop drilling machine, if you turn it down and work it slowly, a good hole has come.
Drilling of spring steel
On 2017-02-05 21:00:32
As expected it is super steel. With no stress on thick plate spring steel, it was possible to drill holes with Swiss die.
Perforation of thick stainless steel plate
On 2017-01-05 22:55:58
Thick stainless steel can also be pierced without causing problems, but easy to break and easy to break Because it is easy to break, pull out 2 SUS 304 plates of 5 t in stack and stop with clamp (total 10 mm thick), hole of φ 3.2 and hole of φ 6.8 I opened it (no under hole, use water soluble cutting agent with drilling machine). Φ 3.2 opens the sky. I could open as much as 20 holes without sharpening, but there was no problem. Even with φ 6.8, although the staggering was not good, it opened without problems. The blades blunt when opening 2 to 3 holes, so we grinded the cutting edge with a grinder and opened it. The grinding wheel of the grinder was exchanged for a GC grinding stone because the tooth is inconspicuous with the one attached to the grinder. Grinding well with GC whetstone. In the case of φ 6.8, because the engagement was bad, when we opened the pilot hole of φ 3.2, the piercing speed increased but the vibration increased and the outer periphery of the blade was chipped. This blade is hard but seems to be brittle. It is safer not to have a pilot hole. Also, although the drilling machine of 200 w motor is OK if it is φ 3.2, it is not enough at φ 6.8, so when trying to open with a 720 w electric drill (hand held), I broke the blade, why it broke. After all it seems to be limited to a drilling machine when opening a deep hole with this drill blade.
Drilling of SUS steel material mounted on drilling machine
On 2016-12-26 21:40:44
Because the material of the drill is too hard, be careful as the cutting edge will be chipped if too much force is applied.
Drilling of stainless steel
On 2016-12-22 01:40:48
Anyway it cuts well. The discharge of chips is better than it looks. The most expected durability seems to be good.