Two-handed saw because so called that it requires the application of tractive effort of the two hands for which at each end there is inserted on top of the wooden handle. But experience has shown that if a single handle insert from bottom, then from that end of the saw, you can work for one person: the cloth will not “wobble”, obediently moving in both directions.
Recommend to read
A COPY OF THE ZIGZAG
Any complex shapes are easy to copy, if you use a set of thin plates from the available material — cardboard, plywood, plastic, metal. Enough to push a package to the playable terrain,...
UNIVERSAL POWER SUPPLY
Every radio Amateur knows that without a source of constant and alternating stresses of different magnitudes in practical work is not enough. He needed to establish radiocontrole, repair...