![]() ![]() We’re able to source drill bits and machine tools from a huge variety of manufacturers for all applications. You can view a selection of our tools online, or give us a call. Barrett we stock a huge selection of drill bits for cutting through all materials, including stainless steel. These high-quality and hard-wearing drill bits are able to stand up to the pressure of stainless steel, cutting through it with ease.Īt R.D. We recommend that you choose either a cobalt drill bit or carbide drill bit for stainless steel hole making. HSS-W metal bits have a single tight spiral and are designed to drill through materials such as copper and aluminium.HSS-N are HSS bits with normal spirals, which makes them suitable for cutting through iron, steel and other metals.HSS-H drill bits have elongated spirals which makes them suitable for cutting use on hard plastics and hardened steel.HSS-E/HSS-Co drill bits are designed to cut through stainless steel.There is a variety of HSS sharp drill bits with various designations. HSS drill bits are a different shape and made from different materials to those used to cut through wood or stone. To cut into hardened stainless steel, you will require a drill bit with a large point angle of at least 130 degrees. ![]() ![]() HSS drill bits have sharp edges that can cut into the tough metal. To drill through stainless steel, you need an HSS (High-Speed Steel) drill bit. What drill bit should I use to cut through stainless steel? Stainless steel is also highly ductile, which means it stretches more than other metals, making it harder for the bit to remove chips. The strength of the material makes it resistant to chipping, which can lead to a build-up of material around the edges of holes, lessening their strength. This can lead to heat building up on the cutting edge, which can cause damage and deterioration. Steel has low thermal conductivity, which means heat doesn’t dissipate quickly. Work hardening can cause stress to machinery and drill bits, shortening their life and increasing the chance of breakage. If the cutting speed of the drill is too high and the feed is too slow, the heat generated can harden the material – making cutting more difficult. The biggest issue is the risk of work hardening. Stainless steel isn’t the hardest metal around, but it is challenging to work with. Why is stainless steel difficult to drill? Some steels will also have elements of nickel and molybdenum added to increase corrosion resistance. Stainless steel contains carbon, silicon and manganese within it. The addition of chromium provides a protective layer of oxide on the surface of the metal, which prevents rust from forming and provides attractive heat resistant properties. Stainless steel is an iron alloy that contains at least 10.5% chromium. ![]() In this guide, we describe how to drill stainless steel and stay safe. Drilling through stainless steel requires the right machinery, the right tools and the right approach. The properties that make stainless steel so attractive also make it challenging to work with. You’ll find stainless steel used in almost every sector, including construction, automotive, transportation and consumer goods. Stainless steel is robust, hard-wearing and corrosion resistant – which is why it’s such a popular material for manufacturers. ![]()
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