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Tools: What's the difference between carbon and bi-metal blades?

JEDI

JEDI

Lifer
Examples

I bought THIS hacksaw, but the blade that came with it sucks.

I'm going to use it to cut PVC plastic, wood, and metal pipes. (plumbing, exterior trim, electrical)

What's the difference between carbon and bi-metal hacksaw blades?

Edit:
and High Speed Steel?
 
a bimetal blade has carbon teeth welded to a more flexible steel piece that lasts longer. A carbon blade is more brittle and more likely to break.
 
it's been a while but i'm pretty sure that bimetal means bonding a harder metal to the teeth of the blade so that they stay sharp, but the blade base is a softer metal so it isn't as brittle... pure carbon steel blades are brittle and break if they get bent or twisted...

and u r going to want a couple different blades for all those materials, if u want to do the best job... the metal requires smaller, finer teeth; the plastic (depending on the thickness) may require a little more aggressive teeth to not clog and heat the plastic; the wood generally wants larger, offset teeth...
 
Originally posted by: JEDI
Examples

I bought THIS hacksaw, but the blade that came with it sucks.

I'm going to use it to cut PVC plastic, wood, and metal pipes. (plumbing, exterior trim, electrical)

What's the difference between carbon and bi-metal hacksaw blades?
Click to expand...

Please don't use a hack saw to cut wood trim.

For PVC and metal pipe, I'd use a pipe cutter, nice clean straight cuts with little effort.
 
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