TOP MATERIAL: This bimetal hole saw blade is made of high-quality HSS high-speed steel, which is sharp, corrosion-resistant, wear-resistant with enhanced heat resistance and greater product life QUICK CUTTING: The hole saw makes the cutting smooth, deep into various materials and with light vibration. It requires arbors with an extended length pilot drill IN-DEPTH CUTTING: The deep cut saw features an increased hole saw depth of 51mm (2″) and is ideal for cutting metal of more than 3mm thickness, tubes with a wall thickness of greater than 3mm and wood up to 51mm (2″) thick COMPATIBILITY: Our hole saw comes in different sizes, compatible with many manufacturers' power tools. This hole saw is perfect for jobs that require high performance and precision to meet all your needs PERFECT SIZE: 19mm – 210mm (3/4″ – 8.9/32″) Available in various diameters covering the most popular hole saw sizes on the market PERFORMANCE: The sharp teeth of the hole saw are perfect for hole cutting in metal inox, non-ferrous materials, and cast iron. It is highly recommended for wood, and can also be used for veneer, plastic, acrylic, fibreglass, formica, plaster, and suspended floors. Note: not recommended for hardwood, hard metal, and stone Please Note: This Deep Cut hole saw does not include the Arbor and Pilot drill