Tap screw hole of self-made case, use the non-through under hole
On 2016-10-14 15:15:17
Product I bought at the local hardware store, and drill stopper is also a set, you need in a comfortable adjustment of the depth of the hole.
Reference Products: Niigata Seiki drill stopper order code: 86929525
Of this product, and marked with drill stopper to match the drill diameter, you can non-penetrating tap threading.
A stopper such as Niigata Seiki drill stopper (86929525) I want you to put one of the there were things to drill size.
But the place of the shank is in the hexagonal axis, the hexagonal axis is easy out runout hole diameter of retrofitting because there can be large enough 0.3mm than drill bit diameter, I want in the straight shank stop the hexagonal axis .
"Runout error 0.3mm is the allowable error range of charging drill manufacturer. "
By the way, I am in the case of the hexagonal axis retrofitting are scraped off on a lathe.
Then swing error will be 0.05mm or less.
It is very clean hole is very easy to use autumn.
However, because still did not work, which spend a lot of load, there is a little anxiety or hexagonal shaft and the drill part is not Shimawa around at that time.
I think that it is a very good product with few clean burrs and a clean round hole for thin sheets and soft objects. However, there was also a fatal flaw. Hexagonal shafts are adopted mainly though it is supposed to be used with a hand drill, in particular the parts which are 6 mm or less are chucked separately and the knife part is press fit + It is bonded with adhesive. (It was so because it was scraped off with the grounder.) This is not very good. I bought various sizes, but the tip is all blurred. (It is not chuck or chucking blur but quickly the drill itself has blurring.) It may not be felt so much if it is a hand drill, but it is very well understood that it is blurred when used with a drilling machine. So it is often that the position shifts even if you punch firmly and start carefully. While it is a great tool, I felt it wastefully wastefully, so it is up to you to scrape off the hexagonal shank and remove it for this reason. Incidentally, things scraped off rotate without blurring, making it very easy to use. It is the same precision as the usual drill. So I wish I would sell an integral type of ordinary round shaft without having to bother with such a hexagonal shaft. There are things like a "plate paldrill" with a tip shape similar to Mitsubishi Materials, but this one has been sold for 10 sets, so if you order each size, you have to buy a lot in vain so It is unavoidable and can not be purchased.
Drilling of angle etc.
On 2014-03-25 07:55:15
I like burrs less than the drills I used so far and I enjoyed very smooth hole making work.
We are using aluminum handrail for drilling work.
On 2012-07-14 08:59:40
Since Bali is not so much, there is no necessity of deburring and I am very saved.
Used for drilling of materials such as stainless steel, which takes time to remove burrs.
On 2012-05-10 20:52:57
Since burrs do not appear, man-hours could be reduced. The hole shape is also close to a perfect circle. The material could also be processed similarly with stain, iron and aluminum. However, it seems that it is unsuitable for things with thick walls, round bars, etc. It broke during processing.
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