Asphalt is a mixture of gravel, sand, crushed stone, and bitumen, a black, sticky petroleum byproduct. You’ll see this composite material on roads, railway tracks, parking areas, sports areas, airport runways, and many other applications. Discover what you need to know when drilling through asphalt to save time and achieve quality results. Use a Rotary…

High-speed steel (HSS) drill bits are a popular, versatile cutting tool that can help you cut precisely and efficiently. Coatings such as titanium and black oxide can make HSS suitable for drilling a wider range of materials. To work safely and get the most out of your tools, learn what an HSS drill bit is…

Spade bits and auger bits require different techniques and produce different hole styles. Learn about four differences between spade bits and auger bits to understand how to use these tools appropriately. 1. Bit Shape Spade bits are also known as paddle bits because of their shape. A spade bit features a flat, paddle-like head with…

M42 cobalt drill bits stand out from other bits thanks to their exceptional hardness, heat resistance, and durability. Learn more about what an M42 cobalt drill bit is and some of its applications. Characteristics of M42 Cobalt Bits M42 cobalt drill bits are made from a specific type of high-speed alloy called M42 cobalt steel….

Hardened steel is medium- or high-carbon steel that has been given heat treatment, rapidly cooled and tempered. The high amount of carbon in the steel makes it possible to harden the metal. Hardened steel is resistant to wear and high-impact pressure, making it a choice material for applications that require hard-wearing materials. These characteristics can…