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duMont Square Broach set, US $250.00 – Picture 0
duMont Square Broach set, US $250.00 – Picture 1
duMont Square Broach set, US $250.00 – Picture 2
duMont Square Broach set, US $250.00 – Picture 3
duMont Square Broach set, US $250.00 – Picture 0
duMont Square Broach set, US $250.00 – Picture 1
duMont Square Broach set, US $250.00 – Picture 2
duMont Square Broach set, US $250.00 – Picture 3

Dumont Square Broach Set

US $250.00

  • West Palm Beach, Florida, United States
  • Mar 12th
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 This set consists of  7 pieces.  The sizes are 3/16, 1/4, 9/32, 5/16, 11/32, 3/8, and 13/32.  All are marked on the shank with the proper pilot hole size.  When using these there should be no more than 3 or 4 teeth engaged maximum and no less than 2 teeth engaged minimum.  Use an Arbor press that has very little slop in the ram to help insure squareness of the center line of the hole.  These tools are recommended for use on mild materials.  Consult the manufacturer for use on anything other than a mild material.  I bought these back in the early 80's and used a couple of them in aluminum.  I am selling them because I am selling my shop after 41 years.
“A couple of these were used on some 3/8 thick 6061 T-6511 aluminum. There is no indication of wear on the cutting flats and the back tapered sides.”
Brand DuMont
Country/Region of Manufacture United States

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