Square Hole Drill Bit

If you are wondering how we can drill a square hole in metal or wood?

Yes, it seems easy for wood as we can chisel off, but how it for metals.

The answer is the same. We will use the same technique but with harder drill bits.

Here we will discuss all the aspects of performing the cutting for spot weld.

Before dig in deeper, let us see

How to drill a Square Hole?

If you are in a hurry, you can watch this video and then read about the drill bits we need to use for this.

I will drive you through complete technical & pricing comparisons.


Here are my recommended products picked out through amazon you would be interested in depending on your budget…

SaleBest Value
Irwin Tools 1837379 Impact Performance Series Insert Square...
Irwin Tools 1837379 Impact Performance Series Insert Square...
These drill bits are built for maximum durability and long life with impact drivers; Each drill bit is manufactured with heavy-duty, cold-forged, high-grade steel

Square Hole Drill Bits Reviews | Top Rated

Normally, the square holes in metal sheets are made through a proper manufacturing process. What we do is first we make a round hole and chisel the whole to a square shape. This is done through the press.

This is not the process that you need to do every day but really helpful to know about metals, especially as woods are quite soft and can ‘squared’ easily.

Let us see some top products that are helpful for a square hole.

1. Irwin Tools Square Drive Bit | Square Hole in Metal

Price at Amazon!

Here is what I really like about this product;

Features I Like!
  • This is made of heavy-duty, cold-forged, high-grade steel
  • A black oxide finish resists corrosion to help increase the life of each insert bit
  • This insert bit has a precision-tip geometry that delivers superior fitment with reduced stripping and cam-out

Read More: Carbide Bits for CNC, Best Bits for CNC

3. OSCARBIDE End Mills Set Square Cutter

Price at Amazon!

Here is what I really like about this product;

Features I Like!
  • This is made of Tungsten Carbide TiAlN Coated that makes it 3 times Durable than Carbide.
  • It’s easier roughing, and the finishing process makes a square hole easy.
  • These bits work well on hard materials like plain carbon steel, alloy steel, die tool steel, tool steel, cast iron, titanium, etc.

4. Coohole Drill Bits Set Wooden Bead Maker Milling Cutter

Price at Amazon!

Here is what I really like about this product;

Features I Like!
  • This is made Use of ultra-fine grain carbide material that is good for milling operation, cutting with high work efficiency.
  • It gives a clean surface clean, neat, and with no glitches.
  • It is a perfect gift for DIY Wood-working Carving edging, trimming, veining, and grooving in all woodworking projects for professional carpenters and hobbyists.

5. Square Hole Drill Bit Set Steel Wood Hole Saw

Price at Amazon!

Here is what I really like about this product;

Features I Like!
  • This is dedicated only to woods.
  • It reduces the labor time & cost in the construction industry.
  • It gives a neat and clean operation overall.
  • Reliable and long life

Die Grinder Bits

The grinders are used mainly for deburring while making a square hole. These can also be used for metalwork, toolmaking, model engineering, wood carving, jewelry making, welding, chamfering, casting, grinding, cylinder head porting, and sculpting.

Die Grinder Bits for Stainless Steel

Wood is quite soft, and we can deburr with a metal chisel or a simple file easily, but in the case of metal, we use die grinder specially made for this purpose as these are made of hard carbides diamonds.

Here, we will see an example of these grinders, and you can explore more later on and evaluate as per your need.

Carbide Burr Set JESTUOUS Double Cut Edge Rotary File

Price at Amazon!

Here is what I really like about this product;

Features I Like!
  • These die grinders are specially made by heat-treated tungsten carbide, sintered at high temperatures, and machined later on to get a fine finish.
  • Its tooth angle is designed so that chipping is optimized.
  • It can be used for fine works like mold, patterns, and dies.
  • Best for DIYers and trade professionals
  • Drilling a square hole made easy with these grinders overall.
  • A must-have in your toolbox, as you can use it on many occasions while working on different jobs.

How to Make Square Hole in Metals?

If you are working on a thin metal sheet, you can easily cut it with a chisel.

But if you got a thick metal, then make a center hole and then burr it with a file grinder or die grinder at a drill press.

Read More: Flexible Extensions, Dirt Auger Drill Bits and, Porcelain Drill Bits.

Video Guide | Square Hole Drill Bit


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David Houghton
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2 thoughts on “Square Hole Drill Bit”

  1. Thank you very much to write about the Square hole drill bits. Although it is a bit confusing how we will come up for square you covered it well.

    1. Thank you, dear. If you have any specific drill bit to write about then let me know. I hope I will help.

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