Magnetic 1-2-3 Blocks

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  • Magnetic 1-2-3 Blocks
  • Magnetic 1-2-3 Blocks
  • Magnetic 1-2-3 Blocks
  • Magnetic 1-2-3 Blocks
  • Magnetic 1-2-3 Blocks
Frequently bought together:


The Magnetic 1-2-3 blocks are the larger, beefed up version our magnetic shop shims. The blocks have 2 powerful rare earth magnets flush mounted on each of 3 different faces while their opposite faces remain without magnets.

​You will find yourself reaching for these all the time instead of digging through the scrap bin.

​If you weld everyday, don’t even bother finding a place to store them, just attach them to the side of your table or table legs.

​Ground parallel and square on all 6 sides.

​Some common uses for these blocks

  • Elevating parts for welding or marking
  • Creating a rest for positioning cross bars



Dimensions: 3.000" x 2.000" x 1.000", oversized up to 0.0005"
Square: +/- 0.0003" all sides
Hardness: 50 HRC
Weight: 1.6 lbs per block
Material: Steel

Magnet strength will vary depending on the thickness of material it is adhering to, but on 1/2" material the pull away force is over 12 lbs.

Magnets can be replaced using the screws, but avoid prolonged exposure to temperatures above 175 F (80 C) as above this temperature magnets may permanently lose magnetism.

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13 Reviews

  • 5

    Posted by Keith Parnas on May 11th 2020

    Love my blocks, but than again,I love everything I get from fireball tools

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