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. It's great on rebar, copper pipe , galvanized pipe, conduit, square steel tube and angle steel. Engineered with the Diamond Cut Advanced Metal Cutting Technology, this RIDGID blade will rip through hard dense metal and mild steel at fast cutting speed and will make quick work of all your metal cutting jobs. The diamond saw blade cores are made from high alloy, heat-treated steel. Depending on the type of blade selected, the steel cores are specifically designed to support the appropriate rim or segment. About the periphery of the core, the various rims or segments are affixed through a brazing or laser welding process. The conventional diamond saw is a metal-alloy disc at 2 to 2.75 inches in diameter, spinning at about 3,000 to 8,000 revolutions per minute. These saws are usually mounted in rows, and controlled by a sawyer or computer so many stones are cut simultaneously. A Diamond Blade is a circular steel disc with a diamond-bearing edge. The edge of the blade may be smooth or textured, continuous rim, or a segmented rim with smaller, individual sections. The blade core is a precision- made steel disc and may have a continuous or slotted rim. Copper is very malleable —it's easy to shape—but it's too soft, not stiff enough, and too weak to make a sword blade. There are alloys of copper that can make a good sword blade, though. Copper exhibits low absorption and high reflectivity of infrared wavelengths, leading to inefficien t laser cutting. Copper's high reflectivity can damage laser optic s equipment. Copper reflects over 95% of infrared radiation when in its solid state. This makes the cutting process unstable and difficult to control.