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.
Back Bali opened a beautiful round holes in a thin plate and a soft thing I think also that it is at least a very good product.
However there was also a fatal flaw. Mainly I think the thing of assuming the use of a hand drill, but has been adopted hexagonal axis, in particular the following things 6mm have part to chuck it in a different body, pressed the blade portion + it is joined by an adhesive. (After scraping in Guranda it had become so) this is not very good. I bought a variety of sizes, but all tip shake. (Rather than a shake of the chuck and chucking, there is a blur to spud drill itself), but you might not feel that's hand drill too much, you know very well that are blurred and used in the drilling machine. So often that the punch also deviate firmly struck carefully even if the start position. While feeling really such a waste for a long-awaited good tool, is up to you are using up to the fact that pay taken scraped a hexagonal shaft portion in such a reason. By the way scraping ones will be easy to use very rotates in the Burezu. It is the same necessary and sufficient accuracy and normal drill. So also I think that I wish me to sell those of the integral of ordinary round shaft with no bother, such as this hexagonal axis.
There are things to be "plate Pal drill" at the tip shape, such as similar to Mitsubishi Materials, here have been the sale of a set of 10, which is also so must buy waste a lot when it comes align each size undue importance is not Fumikire to buy without.
Angle of drilling, such as
On 2014-03-25 07:55:15
Bali is less than the drill that was used up to now, drilling operation has liked it very much becomes smooth.
It used in the drilling of aluminum handrail.
On 2012-07-14 08:59:40
Since Bali is not so, we have very survived without the need for deburring.
Such as stainless steel, used in the drilling of a material deburring man-hours it takes.
On 2012-05-10 20:52:57
Since the Bali does not come out, man-hours could be reduced. Hole shape is also close to a true circle. The material could be processed in the same way also in stainless steel, iron, aluminum.
However, those of thick thick, etc. is as unsuitable round bar, had broken during processing.