Definition:It is a fine-tooth saw with a blade under tension in
a frame that is used for cutting hard materials (as metal). It is
sometimes called an adjustable hacksaw because the length of the
frame can be altered to hold blades of different sizes.
Function:used primarily for cutting plastic and metal pipes and
other small household materials.
2. Adjustable wrench
Definition: is a wrench with a "jaw" of adjustable width,
allowing it to be used with different sizes of fastener head (nut,
bolt, etc.) rather than just one fastener, as with a conventional
fixed spanner.nuts, with an adjustings crew in the head of the
implement
