DRILL-GREGORATOS

DRILL-GREGORATOSThis simple device will help with the help of ordinary hand drills to cut holes of any diameter in the plywood, hardboard and particleboard.

Recommend to read

  • LOCKS WITHOUT SECRETSLOCKS WITHOUT SECRETS
    Both designs are quite small locks. On their basis it is possible to create other systems, more sophisticated. The first castle shown in figure 1, suitable for flat products — folders,...
  • STARTED WITH BALLOONSTARTED WITH BALLOON
    It was built of plain newsprint. This simple design N. V. Rumyantsev, the head of one of clubs of young technicians of Ryazan, was able to captivate the children, introduce them to...