I wanted to pierce the pipe and easily penetrated the φ 26 mm pipe with a φ34 mm hole saw.
Although it got a little value, it was possible to drill two pipes at the same time, welding between pipes became easier, so we made five stars.
Work to embed round meters
On 2017-05-18 04:01:39
I think that it would be better to have a hole in the center of the body of Holstow so as to easily remove the facet remaining in Holstrow without removing the center drill and push it out with a screwdriver or the like.
We were able to quietly drill a hole while injecting oil into the steel with a thickness of 4 mm using a desktop type exclusive machine. There was no spill of the blade, it was able to be made smoothly smoothly.