Drilling in metal doesn't have to be difficult! With the right tools and technique, you can easily create precise and clean holes, whether you are working with thin sheet metal or hard metal. Here, we walk you through the basics and share our best tips.
Choose the right drill bit for the material
Different metals require different types of drill bits. For soft metals like copper and aluminum, standard HSS (High-Speed Steel) bits work well. However, if you are drilling into harder materials, such as stainless steel, you need special bits with higher wear resistance.
Look for:
- HSS-Co: These are made of HSS steel with added cobalt, making them perfect for hard metal.
- Step drills: Ideal for thin sheet metal, they make the process quick and easy with smooth and clean cuts.
- Bi-metal hole saws: Suitable for larger holes in both thinner and thicker materials.
See our range of metal drill bits here.
How to drill in thin sheet metal
Drilling in thin sheet metal can be made easier with the help of a step drill. Start with a small hole, corresponding to the core of the larger bit, and then work your way up in size. Step drills eliminate this extra step and provide smoother cuts, saving both time and energy.
How to drill in iron and steel
For harder metals such as stainless steel, extra care is required:
- Lower speed: High speed creates heat that can damage both the drill bit and the material.
- Light pressure: Let the drill bit do the work without overloading the machine.
- Cutting oil: Use to cool and lubricate the drill bit, which prevents overheating and extends the lifespan of the bit.
Step-by-step: Drilling large holes in metal
- Identify the material: Is the metal soft or hard? Thick or thin? This determines which drill bit you need.
- Pilot drill: Start with a smaller bit (the same diameter as the core of the larger bit) for better precision.
- Adjust the speed: Keep the machine at low speeds to avoid heat buildup.
- Use the right bit: Step drill for thin sheet metal or HSS-Co/M42 for hard metal.
- Cool with cutting oil: For thicker or harder materials, this is a must.
With the right technique and tools, the job becomes both simple and efficient. Discover our products for metalworking and take your work to the next level!