The reviews are automatic translation.
Hole drilling to board which has been baked
On 2017-10-05 09:28:41
Because the carbide cutting tool is easy to break, it is natural that processing consideration such as cracking (not breaking) such as to apply force perpendicular to the central axis of rotation is necessary but I think that it is necessary.
On that basis, I thought that I would work more than enough price.
However, compared with the latest drill that considers the embossment of waste and waste heat, it aims to extend the life expectancy of ordinary high-speed drills, removes broken drills and taps at the time of consumable items, and baked I think that it is suitable for the spot-like application such as opening a hole in the metal that it contains.
Audio Used to drill the board of your home-made amplifier
On 2016-12-13 09:41:27
The taste looks nice, it feels reliable. I wanted the length to be 20 mm more.
Drilling at the top of the fishing rod
On 2016-06-07 23:29:33
Although it was in use and explanation also for stainless steel, it was not useful at all and it broke on the way.
On 2015-09-18 09:01:12
Because it is super hard, it can be cut well, but I would be happy if the price is a little cheaper!
Drilling of steel material
On 2014-12-05 14:52:43
For comparison with other products, purchase. Although it was working at low speed while inserting lubricant, it broke in the middle of opening the fourth hole. I'm sorry.
Drilling of NiTi alloy
On 2014-08-29 14:39:01
Used for drilling of hard materials (Inial Hall). Although there is a balance with cutting oil, breakage is required unless the blade is constantly being grounded.
Drilling in SM400A with electric drill
On 2014-07-21 13:26:14
· Used in work for making holes in mild steel (SM 400 A) at site work · Coated and used cutting oil · Used with electric drills using electric drills Used under the above conditions but one of five purchased In the first drilling, chipping, unusable other two were retained only about 1/4 compared with other company's carbide drills, eventually completing construction using other company's products. Please keep the remaining two as emergency for emergency by not using it.
Drilling of carbon etc.
On 2014-06-12 08:50:35
I was glad that carbon was scraped. I also wanted to use it for plastic parts, but the full length was short and I could not use it. I would be happy if there are things like 80mm or 90mm in total length. The shank diameter is the same as the blade diameter.
On 2013-09-18 13:15:52
Even if the punch is sweet, it was recommended without sliding at the start of drilling.
Drilling of carbon plate
On 2013-05-07 18:36:37
I used it for carbon (RC chassis) with a thickness of 2.5 mm to 3 mm, but the hole opens like a tree. Excellent cost performance!
Drilling into cast iron, single pipe pipe with hand drill
On 2013-02-14 18:13:47
I immediately lost the cutting edge, but I could use it afterwards. However, asymmetrically lacking will result in vibrations in the rotation and no decent hole. Unilateral pipes could not be easily cut unless you put force in, but if you press oil until the smoke comes out, it will shave out suddenly. I also tried a similar Sumitomo Electric hard carbide drill but it was broken with a single shot. I think that this one is better.
Removal became impossible, drill hardened pin φ 5 mm to drill, remove,
On 2013-01-31 18:02:31
It is expected to be no problem if normal hole drilling is predicted 2 out of 3 broken for use in special work.
Removal of broken dish hexagon socket head bolts (perhaps high carbon steel)
On 2013-01-12 18:12:43
I used it since smoothing the surface this time, so it turned out without problems.
Removed broken dish hex screw (S45C H)
On 2012-12-30 18:49:40
It was broken. I seemed to be caught somewhere and cracked so that the cutting edge could be peeled off. As it is a carbide drill, it is still a painful place of things we can not afford.
Drilling to stainless steel 304 plate thickness 4 mm
On 2012-11-26 14:10:28
Because of the carbide, it was easy to break.
Drilling of stone etc.
On 2012-11-19 11:49:28
There is no durability. It's less than half the price compared to the drill I usually use, but the durability was less than that. It is a feeling that it is cheap and bad. It was purchase thought that it was disposable · · ·
I drilled hardened steel (broken plus screwdriver bit).
On 2012-01-17 18:52:10
I used it for drilling work (hardened steel) in broken plus screwdriver bits, but the cutting edge quickly broke. I bought five books, but also five bottles broke.
Drilling of stainless steel plate
On 2012-01-13 15:52:02
It became impossible to use immediately after the blade was chipped.
I tried to use it to remove a broken tap.
On 2011-12-19 17:03:48
The spiral tap broke, it seems that it was impossible to use it as one of its removal tools. I bought two of them because the price is cheap, but it was damaged immediately because the purpose of use is different. At next purchase, I will try to use according to the purpose.
Drilling of steel plate
On 2011-11-23 19:41:18
14 I could not cut when I opened the hole.