Editing Hacksaw (section)

== Variants ==
[[file:Panel hacksaw.JPG|thumb|left|A panel hacksaw]]
[[file:SawMachine.jpg|thumb|An electric hacksaw]]

A ''panel hacksaw'' has a frame made of a deep, thin sheet aligned behind the blade's kerf, so that the saw could cut into panels of [[sheet metal]] without the length of cut being restricted by the frame. The frame follows the blade down the kerf into the panel.

''Junior hacksaws'' are a small version with a half-size blade. Like [[coping saw]]s, the blade has pins that are held by notches in the frame. Although potentially a useful tool for a toolbox or in confined spaces, the quality of blades in the Junior size is restricted and they are only made in the simple low alloy steels, not HSS. This restricts their usefulness.

A ''power hacksaw'' (or ''electric hacksaw'') is a type of hacksaw that is powered either by its own [[electric motor]] or connected to a [[stationary engine]]. Most power hacksaws are stationary machines but some portable models do exist; the latter (with frames) have been displaced to some extent by [[reciprocating saw]]s such as the [[Sawzall (tool)|Sawzall]], which accept blades with hacksaw teeth. Stationary models usually have a mechanism to lift up the saw blade on the return stroke and some have a coolant pump to prevent the saw blade from overheating.

Power hacksaws are not as commonly used in the metalworking industries as they once were. [[Bandsaw]]s and [[cold saw]]s have mostly displaced them. While stationary electric hacksaws are not very common, they are still produced. Power hacksaws of the type powered by stationary engines and [[line shaft]]s, like other line-shaft-powered machines, are now rare; museums and antique-tool hobbyists still preserve a few of them.