General description Neilsen 9pc Plumbers Bi-metal Hole Saw Kit is designed for versatility and efficiency in cutting through various materials. This comprehensive set includes hole saws ranging from 19mm to 57mm, making it suitable for both professional and DIY applications. The kit comes complete with a carry case for easy storage and transport. Technical specifications Contents: 9 hole saws (19mm, 22mm, 29mm, 38mm, 44mm, 57mm) Material: Bi-metal with variable pitch M3 HSS steel teeth Includes: 2 arbors and a mandrel adaptor Compatibility and accessories Compatible with cast iron, stainless steel, alloyed and non-alloyed aluminum, bronze, copper, PVC, acrylic, and wood