Square Hole Drill Bit

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

Yes for wood it seams easy 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 then you can watch this video and then come back to read about drill bits we need to use for this.

I will drive you through complete technical & pricing comparisons.


Here’s 3 products we picked out through amazon you would be interested in depending on your budget…

Best bit, 1pc HSS Square Hole Saw Mortise Chisel Wood...
Length: as picture show; Type: Gun Drill Bit; DIY Supplies: Woodworking
Unik Always Tool Kit Mortising Chisel Woodworking Set...
Material: High carbon steel; Type: Square Hole Drill

Square Hole Drill Bits Reviews | Top Rated

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

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

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

#4 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 for woods.
  • It reduces the labor time & cost in the construction industry
  • It gives a neat and clean operation overall.
  • Reliable and long life

#3 Irwin Tools 1837379 Square Drive Bit

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 deliver superior fitment with reduced stripping and cam-out

#2 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 thats makes it 3 times Durable than Carbide.
  • It’s easier roughing and finishing process makes a square hole easily.
  • These bits work well on all types of hard material like plain carbon steel, alloy steel, die tool steel, tool steel, cast iron, titanium, etc.

#1 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 of 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 no glitches.
  •  It is a perfect gift for DIY Wood-working Carving edging, trimming, veining, and grooving in all woodworking projects for both professional carpenters and hobbyists.

Die Grinder Bits

The grinders used mainly for deburring during making a square hole. Also, these can 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 case of metal, we use die grinders that are specially made for this purpose as these are made of hard carbides and 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 especially 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, pattern, 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 on many occasions while working on different jobs.

How to Make Square Hole in Metals?

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

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

Read More: SDS Shank Hammer, Square Drill bits, Flexible Extensions, Dirt Auger Drill Bits and, Porcelain Drill Bits.

Video Guide | Square Hole Drill Bit


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2 thoughts on “Square Hole Drill Bit”

  1. Greetings! I’ve been following your weblog for a while now and finally got the bravery to go ahead
    and give you a shout out from Houston Tx! Just wanted to
    tell you keep up the great work!

    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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