There are many types of diamond blade, and they have many uses, including cutting stone, concrete, asphalt, bricks, coal balls, glass, and ceramics in the construction industry; cutting semiconductor materials in the semiconductor industry; and cutting gemstones, including diamonds, in the gem industry. Carbide tipped blades cut harder, denser metals like hardened steel, cast iron, alloys including boron steel, and higher grades of stainless steel. These blades are extremely hard, heat-resistant, and impact-resistant. They are typically 8 TPI. In a diamond blade, he synthetic diamond materials are mixed with other materials such as iron or steel to form the right blade with outstanding diamond segments along the cutting edge. Diamond blades are generally used for cutting hard materials. The short answer is no, the diamonds used in diamond blades are not real. The diamond crystals that are used in the construction of the diamond blade segments are artificial and are made with the purpose of being stronger than natural diamonds. Carbon steel blades are flexible to allow bending without breaking and are great for cutting wood or plastic. Carbon steel blades are generally the best reciprocating saw blades for trees. High-speed steel blades have durable teeth but are more prone to breakage and last up to five times longer than high-carbon steel. Diamond, if you don't know already, is the hardest naturally occurring substance known to man, which is why it's used to cut hard materials like tile, steel, and concrete. Placing a diamond under UV light and watching the reaction can sometimes be a good indicator of whether a diamond is real or not. Most diamonds emit a blue-colored glow under UV light, but not all of them. So if your diamond does, you can feel pretty confident that it is a real diamond. In 1951, Milwaukee produced an unparalleled new tool – the Sawzall® Reciprocating Saw. As the first portable hacksaw incorporating a reciprocating mechanism, it had just three moving parts and was designed to withstand daily abuse and still provide a 3/4” stroke ideal for sawing and roughing out.