Metal drills are designed to cut hard and resistant materials such as steel, cast iron, aluminum, and stainless steel, among others. 

Metal drills differ from other drills in their geometry and material. These drills have a sharp point and a spiral helix that allows metal chips to be effectively removed during drilling. In addition, they are made of high-quality materials that will enable  them to withstand the wear and abrasion that occurs when drilling metal.

How to choose a metal drill bit?

• Identify the type of metal you are drilling. Some metals are softer than others and require a different drill bit. Common metals that drill with drill bits are steel, aluminum, copper and brass.

• Determine the diameter of the hole you need to drill. Drill bits come in different sizes, from fractions of an inch to several centimeters in diameter.

• Decide whether you need a high or low speed drill bit. High speed drills are used for soft metals, such as aluminum and copper, while low speed drills are used for harder metals, such as steel.

• Select the drill bit geometry. The geometry of the drill bit affects the accuracy and quality of the hole being drilled. Drill bits can have a tapered tip or a flat tip.

• Choose the drill bit material. Metal drills are made from a variety of materials, such as high speed steel, tungsten carbide and ceramic. Each material has its own advantages and disadvantages in terms of durability, strength and cutting speed.

• Make sure that the drill bit you pick is compatible with your drill. 

When selecting a drill bit for metal drilling, it is important to consider all of these factors to select the right drill a bit for the job you want to do.

Useful tips for drilling metal

The following tips will help you drill metal efficiently and safely: 

• Wear safety goggles because sparks or metal fragments may fly out when drilling metal, so it is crucial to protect your eyes.
• Select the right drill bit. Make sure the drill bit you use is designed specifically for drilling metal. Drill bits for metal usually have a sharper point and a more rigid  surface than drill bits for wood or plastic.
• Drill bits must be kept clean and sharp before use.
• Make sure the metal part is secure. If the piece of metal moves while drilling, it may cause the drill bit to break, or the hole may not be straight. Use clamps or a vise to hold the piece of metal to be drilled securely.
• Using lubricant can help reduce friction and heat generated during drilling, extending the drill bit's life and improving hole quality. Cutting oil, mineral oil, or white grease are common lubricant choices for metal drilling.
• Start with a low speed to prevent the drill bit from slipping and sliding on the surface of the metal. Once the bit has started to bite into the metal, you can increase the speed.
• Stop frequently. If drilling a deep hole, frequently stop to allow the drill bit to cool and remove metal shavings from the hole.
• Keeping the drill bit straight while drilling is essential to prevent it from breaking or the hole from not being straight. Use a drill guide or mark the hole location with a punch before starting drilling.
• Apply gentle, steady pressure on the drill bit to prevent it from deflecting or breaking. If you apply too much pressure, you may overheat the bit or cause it to jam. 

At Max Warehouse we don't only have useful information on our blog, but you can also contact us directly from your devices, an expert will assist you. We have the best tools at the best prices. 

Here you will find a wide variety of drill bits for drilling metal and all types of materials, such as wood, concrete, among others; as well as the best quality drills and other useful machinery for your business.

If you need a more personalized attention, wholesale or volume costs, and special prices on various items and tools, ask for our Max Pro Program, which is made for all types of professionals and to provide them with the best service to carry out your construction or business. 

Max Warehouse helps you in the process!

Sources: 

1. https://www.youtube.com/watch?v=OyHYHBYHpcg