The reviews are automatic translation.
Use in drilling of metal
On 2016-12-18 16:54:05
It was used after the purchase, but it was broken immediately. It must be a little more durable.
Use in metal processing
On 2016-10-16 04:26:57
Why? Satisfaction is bad, because the center axis of the center axis of the drill bit of the hexagonal axis is displaced.
We asked the manufacturer, up to a maximum error 0.2mm is seems acceptable range.
Impact drivers that are generally sold, center axis deviation to the minute to handy processing the drill, the deflection at the time of play and the handy work of the mounting portion of the hexagonal axis, drilling size is large because the hand (arm) is absorbed now is hard, but when you work in a machine such as a milling machine, drilling machine, lathe is up to 0.3mm greater than drilling the desired size.
Cause is because of the center deviation of the hexagonal axis.
I am a straight short drill scraped off all the hexagonal shaft on a lathe.
Deflection of the drill after scraping off all the hexagonal axis is roughly 0.05mm or less.
Even in ordinary hexagonal axis products, because with a hexagonal axis in retrofitted to an ordinary straight drill, error (deflection) seems to become really big.
Straight drill and rather than make the hexagonal axis to separate, who was made to collectively is I asked the manufacturer and do not the error (deflection) is small, so the manufacturing cost is several times.
Then, yes it increases five times closer than the straight drill.
Purpose (customer base) is used in impact drivers that are generally sold in for people who are used to create a beginner or DIY, is not a professional.
However, it will be marked with each size of the drill chuck to the impact driver, because it is after all the hexagonal axis mounting type of drill chuck, swing error is so up to 0.5mm hole becomes larger.
(Depending on the drill bit diameter and the drill chuck grasp possible size.)
If you want to use in a machine such as a milling machine, drilling machine, lathe, let's use a straight-through drill.
Or, the hexagonal axis drill to understand towards the drill bit on a lathe, let's cut the hexagonal shaft portion to the shaft system of Φ4.0mm.
In the case of drill you want minimum grasp diameter of the lathe and drill chuck is processed, when the lathe is available for processing 3-jaw chuck (fingernails) separately, let's processing.
In the case of milling machines and drilling machines, let's create a dedicated collet chuck.
Drilling in a narrow place.
On 2016-07-26 11:09:47
Although it is unused, it looks good. The tip is like a center drill, so it should be a hole on the punch street? Because I think that bit and drill are solder, there is uncertainty in intensity, but the price is price. I dislike titanium coating ☆ I have decreased by one.
Perforated work on steel plate
On 2016-07-18 08:38:47
Because of the short drill, if there is a large size set easy to use without worry of breaking the drill it is better
Used for pilot hole of plate
On 2016-07-06 23:11:09
A long drill often breaks, but the short one seems to be difficult to break.
Iron plate drilling
On 2016-03-04 18:17:34
Very easy to use. When it is short, power is easy to enter and work efficiency UP!
On 2016-01-22 07:24:34
Compared to the general drill, the hole was opened early with good engraving and good engagement of the blade.
Drilling into iron angle etc
On 2016-01-12 14:59:59
Those with a thin diameter are easy to break easily because they are long, so I purchased this short part this time. I pray for this to last a long while. (Lol)
On 2015-12-11 17:43:59
There are many long drills for impact drivers that are generally sold. Depending on the place to use it was too long to use in some cases. This is short type and it was easy to use and it was out well. This is enough if it is about DIY. There is no problem if you use center punch also center shake.
On 2015-11-25 18:13:25
To break well