The MYWISH HSS Bi-Metal Hole Saw Kit is an essential, compact set designed for efficient and precise hole cutting in various materials, perfect for both DIY enthusiasts and professionals. These hole saws feature a robust High-Speed Steel (HSS) body combined with premium M42 cobalt steel teeth. This advanced bi-metal construction ensures exceptional durability, superior heat resistance, and long-lasting cutting performance. This 12-piece kit includes 6 frequently used hole saw sizes, ranging from 1" to 2-1/2", providing key dimensions for common electrical, plumbing, and general repair tasks. Complete with a drill bit, mandrels, an adapter, and hex keys, this set offers everything needed for clean, fast, and high-torque drilling in wood, plastics, plasterboard, chipboard, and thin metals. All components are conveniently stored in a durable carrying case for easy organization and transport.