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

  • PROTOTYPE -HOURGLASSPROTOTYPE -HOURGLASS
    The Romanian magazine "Technium" offers a diagram of the electronic timer operates on the principle of the 5-minute hourglass clock every minute. The indication to carry out the LEDs....
  • AIR CARS: DREAM AND REALITYAIR CARS: DREAM AND REALITY
    Both at the dawn of the automobile and today, designers - whether amateur or professional - continue to try to set the car in motion using a propeller. For this purpose, both car engines...