A coarse blade cuts faster. This is futile with very hard metals - they will merely dull a coarse tooth blade - but is simply quicker with softer metals. Hard metals cut best, though slowly, with a fine tooth blade.
A blade with those teeth is for cutting very hard metals.A blade with those teeth is for cutting very hard metal
The hacksaw is a saw for cutting metals. It has a very fine tooth, replaceable blade.
A hacksaw is a metal frame that holds an adjustable and disposable blade for cutting metals. Blades are usually 12" long and 1/2 wide with a range of teeth for cutting different metals.
The edge of the blade should be called as edge of the blade. But in practice the cutting edge is probably called as margin of the blade. The expert in English language should explain better.
A hack saw is for cutting metals. It has a disposable blade and you can choose from many tooth sizes and teeth per inch, this allows cutting of a wide range of metals, soft to very hard.
It is used when you need a maneuverable saw as in an arch in a stand or bench.
about an inch
That's a typical hacksaw count, suitable for cutting metals and hard plastics. It will also cut wood, but rather slowly and not in big pieces.
Metal LENOX
On a blade, the cutting edge is the sharp side.
Shearing requires one blade to pass over another blade or a fixed edge. Cutting only requires one blade.
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