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Cutting 1 4 steel with jigsaw.
Stainless steel builds up heat quickly when you are cutting.
Jigsaws work best for cutting softwood that s no more than 1 1 2 in.
Bosch multi purpose steel t shank jig saw blades set for cutting wood and metal 15 pack model t15rc view the jigsaw blades collection 19 97 19 97.
36 tpi high speed steel t shank jig saw blade for cutting metals 5 pack model t118g view the jigsaw blades collection 4 88 4 88.
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To reduce the heat buildup you need to use the proper jigsaw blade with minimal pressure and set your jigsaw to a slow cutting speed.
To keep the cut square use a sharp blade and avoid forcing the saw through the cut.
Make sure the plywood is larger than the steel plate you will be cutting.
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Set the steel plate on top of the plywood.
I ve cut throught 4mm steel plate with my jigsaw and blades from aldi no problem.
Jigsaw blades tend to bend when cutting curves in thicker boards leaving a beveled edge rather than a square one.
Thick and hardwood up to 3 4 in.
It ain t pretty and definately not a plasma cutter but it can be done.
I used it to cut out the wishbone plates for my kit car when i didn t have a plasma.
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Place a piece of 3 4 inch thick plywood flat on the floor.
I don t know know how intricate of a cut you ll be able to make but i was able to make a 4 ft cut and a 3 ft cut on 1 8 mild steel with a b d variable speed jigsaw and 3 or 4 blades.
I ve cut 1 4 plate with my makita and decent bosch metal cutting blades 14tpi iirc and its slowing going but very do able.
The cut can produce enough heat to melt the teeth from the edge of a jigsaw blade.
You can do it.
X 10 tpi hcs reverse cut wood jigsaw blade 5 pack model djt101br5.