DRILL PIPE

In the manufacture of structures made of pipes of the same diameter to neverlet holes in them easily and quickly will help here’s a simple jig. It consists of a metal plate and wooden block in advance which is made a longitudinal cut. In the bar there are several vertical through-holes for drill bits of Read more…

INSTEAD OF SPECIAL — ORDINARY

Cast in many industrial products have long been used mortgages (anchor) bolts with special heads, such that not only pull, but rotate can’t. With the advent of high strength composite self-hardening compositions that bolt you can “lay” in the body of the finished product (plastic or metal) and making it pre-nest, and then simonaityte.