Which best metal cutting tool to do this job?

  • #1
tirelessphoenix
27
4
TL;DR Summary
I want to do a straight metal cutting
I want to do a straight metal cutting, leaving a not too wide line whole in the middle (the filled white part) as seen in the picture. Does anyone know which tool would do this best?

cutting.jpg
 
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  • #3
Second the Dremel call. Take your time, let the speed of the tool do the work. Use either a rotary file on the Dremel and/or needle file(s) to clean up.

Unless you have access to a milling machine, the Dremel will be pretty much the fastest possible solution.
 
  • #4
If you are cutting steel, and can tolerate a 2.5 mm kerf, a steel cutting blade in a table saw works very well. This particular blade has cut over 30 lineal feet of steel in various thicknesses up to about 3/8" in my table saw. Goggles for eye protection are required because hot chips fly. I clean the sawdust from inside my table saw before using because I do not want the hot chips starting a fire. Hearing protection also required because it's noisy.
Steel saw.jpg
 
  • Informative
Likes berkeman
  • #5
jrmichler said:
I clean the sawdust from inside my table saw before using because I do not want the hot chips starting a fire.
Great tip! I don't know if I would have thought of that ahead of time (versus when I was reaching for the fire extinguisher)...
 
  • #6
jrmichler said:
If you are cutting steel, and can tolerate a 2.5 mm kerf, a steel cutting blade in a table saw works very well. This particular blade has cut over 30 lineal feet of steel in various thicknesses up to about 3/8" in my table saw. Goggles for eye protection are required because hot chips fly. I clean the sawdust from inside my table saw before using because I do not want the hot chips starting a fire. Hearing protection also required because it's noisy.
View attachment 351716
The issue I see is that he’s looking at a plunge cut in the middle of the piece, not a cut that can be made from the end of the piece. It also seems to be a tube/box section, not plate, and it’s unclear if the cut is intended for both sides.

@tirelessphoenix , can you show us another view of the piece that you wish to cut this slot into? Some dimensions will be quite helpful as well.
 
  • #7
here it is. its a hollow square, not that thick
metal.jpg
 
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  • #8
Chain drill then file. This will be tedious because the tube steel limits the file stroke. Take your time and drill carefully to avoid a wiggly slot. A dremel tool is faster than filing but it also makes faster mistakes if you're not well practiced.

Maybe there is a "maker" space nearby? They could mill your slot in 10 minutes.
 

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