Sheet metal working: from small to large holes in metal sheet material
Whether you work in mechanical engineering, plant engineering or panel building: sheet metal working is all about precision, speed and the right tools. Punching holes, sawing, milling or drilling - each technique offers unique advantages and is suitable for different applications.
In this blog you will find out which tools you use to make small, large and specific holes in metal sheet material, and above all: when to choose which solution.
What is sheet metal working?
Sheet metal working is the process of machining metal sheets into semi-finished products that are later assembled into a finished product. Examples include cutting, bending, punching and drilling.
There are different solutions for making holes, depending on:
- the thickness of the material
- the desired diameter
- the precision required
- the speed at which you want to work
Below we list the main techniques for you.
Punching: fast and powerful holes in sheet metal
With a manual or hydraulic hole punch, you make holes in metal sheets quickly and accurately. The punching tool pushes through the material with great force, with no heat generation and virtually no burr formation.
Benefits of punching
- Very accurate for thin to medium-thick sheet metal
- Fast, ideal for serial work
- Suitable for stainless steel, steel and aluminium
- Beautiful, clean edges without post-processing
Punching is perfect for installation work and panel building, when holes need to be positioned exactly where they need to be.
Hole saws & hole cutters: for large diameters in metal
Sometimes a standard drill is not enough for the desired diameter. This is when hole saws and hole cutters offer a solution. Both are used to make larger holes in metal, but each has its own advantages.
Hole saws - Ideal for fast, affordable and general applications.
Hole cutters - The choice for professionals who value precision and durability.
Advantages of hole saws
- Fast for large diameters
- Inexpensive solution
- Suitable for metal, wood and plastic
- Perfect for non-critical tolerances
Advantages of hole milling
- Smooth, smooth finish
- Precise tolerances
- Better stability in hard materials
- Long life
- Ideal for high-quality metalworking
In one sentence:
Hole sawing = speed & simplicity.
Hole milling = precision & durability.
Plate drilling: when to choose which version?
With a stepped plate drill you can drill to the right diameter easily and steplessly. Depending on your application, you choose a straight or spiralised version. Plate drills with three-level shanks prevent slipping in the chuck. A TiN coating extends tool life.
Straight plate drills
Straight plate drills have straight chip chambers, which offer the user maximum control. This allows you to stop extremely precisely at the desired diameter and create perfectly round holes.
When do you choose straight plate drills?
- When exact dimensioning is essential
- When you need maximum control
- For precise assembly and panel work
Spiralised sheet metal drill bits
The spiral grooves in spiralised sheet metal drill bits, ensure smooth machining.
When to choose spiralised sheet metal drill bits?
- When you want quietness, stability and smooth cutting
- For thin and thicker sheet metal
- When finish and roundness are important
Extra short drills: maximum control in thin sheet metal
For small diameters in thin sheet metal, an extra short spiral drill is the ideal choice. The compact length makes them more stable and prevents slipping. Extra short drills with three-level shank ensure optimum grip in the chuck.
Advantages for extra short drills
- Fast centring
- Smooth, round holes
- Extra control due to short length
- Perfect for thin sheet metal
Drill bits with Step-point technology guarantee round, burr-free holes. Perfect for electrical enclosures, assembly work and fine mechanical applications.
Try the extra-short Step-point drill bit yourself?
Want to experience how smoothly and accurately an extra-short drill bit with Step-point goes through metal sheet material?
Request here your free test sample and choose the right diameter immediately.