What is a bi-metal hacksaw blade? | buying guide tips
Hacksaw is a very useful hand tool in every workshop. You’ll probably prefer an electric saw because of its speed. The reality is you won’t always have access to electricity, so it’s a good idea to have hacksaw ready in your tool kits.
Hacksaws are actually made for cutting metal, but can also cut other materials such as rods, cut through plastic, and aluminium. Tools for some jobs, such as plumbers and electricians.
The hacksaws work simply same as regular “saw” action, by moving the blade through the metal back and forth
Why must Bi-metal?
Bi-metal blades are made from two or more types of metal. This combination will give results in blades with better cutting speed and durability than non-bimetallic blades, because the advantages of each metal are combined into one blade. Harder teeth will cut better, while the body blade is flexible, made blades last longer than the other type, obviously.
Which TPI do you need?
TPI is the number of teeth the blade has per inch. The number of teeth per inch (TPI) is very important in getting the result you want. The number of teeth can be found on the blade.
Hacksaw blade TPI recommendations:
• 18 TPI is the best choice for heavy duty cutting jobs, such as steel reinforcing rod or pipe
• 24 TPI is suitable for medium duty cutting such as thin wall electrical conduit
• 32 TPI is the great choice for light metal cutting jobs such as aluminium
You need to consider a few things before you choose which TPI is better for you:
• High TPI smoother finish but slower cutting time
• Fewer TPI allows for faster cuts with a rougher finish, not as smooth as higher TPI
• You should have at least three types of hacksaw teeth in your workshop to make your job easier and faster because of all types you need in your hands
You can try high quality saw blades from GROZ. 8% cobalt material, bi-metal saw blade, flexible and shatter-resistant for fast, clean & safe use even on tough materials. Available in 18 TPI, 24 TPI & 32 TPI. you will be on your way to a long-lasting blade with GROZ.