January 14, 2026, 2:11 pm | Read time: 2 minutes
When traditional drills reach their limits because the desired hole is simply too large, the hole saw comes into play. This versatile tool allows for precise cutouts with a large diameter–whether in wood, drywall, or even metal. myHOMEBOOK editorial director Felix Mildner explains on “Easy DIY” how to properly use a hole saw.
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When to Use a Hole Saw
Standard drills are excellent for smaller holes. However, if you want to drill larger holes, such as for outlets or pipe penetrations, you need special accessories. A hole saw set provides the solution: It can be easily used with a cordless screwdriver or a drill and allows for drilling with a significantly larger diameter. In hardware stores, a hole saw–often available in a set with various diameters–can be purchased for little money.
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What to Consider Before Drilling
What to Consider When Buying
Before the first use, you should, of course, choose the right hole saw for the project–as there are some differences. A key criterion is the diameter. Hole saw sets usually offer a selection of saw blades in different sizes. Equally important is the appropriate material of the saw:
- Wood and soft materials: Most hole saw sets are designed for wood. They can easily handle not only wood panels but also drywall and plastic.
- Metal: For more demanding tasks, there are special sets suitable for hard materials. These variants can reliably cut through metals.
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How to Properly Use a Hole Saw
A typical hole saw set consists of a centering drill and several interchangeable saw blades. To drill a hole, connect the drill with a saw blade of the desired size–usually via a threaded connection.
For better power transmission, some models have small bolts on the centering drill. These are screwed into designated holes in the saw blades and ensure a stable hold during the drilling process. Then, the entire unit is clamped into the drill or cordless screwdriver.
Prefer Working at Low Speed
“Working with a hole saw may require some practice. It’s important to start drilling at a low speed and gradually increase it. Ideally, make a test drill before working on the actual piece. Also, the centering drill should be positioned as perpendicular as possible to ensure a clean hole.”