DRILL-IMPROMPTU

DRILL-IMPROMPTUIf there is an urgent need to punch a hole in the tree, but you don’t have suitable drill, you can make… of the nail. Asclepia it on the end as shown in the drawing, and sharpen edges with a file. Such a tool will take any type of wood.
 
DUDCHUK, S. V. kleschikha, Rivne region.

Recommend to read

  • FLYWHEEL ELEVATORFLYWHEEL ELEVATOR
    In the halls of the Central exhibition NTTM, dedicated to the XXVI Congress of the CPSU, it is possible to see many original designs and arrangements, created by young scientists,...
  • TANDEM – A BICYCLE BUILT FOR TWOTANDEM – A BICYCLE BUILT FOR TWO
    For many years I am a regular subscriber of "M-A" and find in it many interesting and necessary. I hope that my experience will be useful to other readers: I would like to share my...