The reviews are automatic translation.
Use the drilling of the board of the audio self-made amplifier
On 2016-12-13 09:41:27
Sharp taste is a looks good, is reliable feel. Length wanted after 20mm.
Drilling at the top of the fishing rod
On 2016-06-07 23:29:33
Stainless steel also had to use the description but had broken in the middle did not help at all.
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.