【High-Quality Material】The hole saw set is made of heat-treated carbon steel with hard alloy steel teeth, providing excellent durability and rust resistance. The saw blade cuts quickly, facilitating the cutting process and improving efficiency. 【Wide Range of Applications】Hole saws are very useful when holes need to be drilled and can be used to drill holes in various materials, such as doors, ceilings, pipes, etc. They are suitable for cork boards, thin PVC panels, plastic, etc., but not for hard panels (density fiberboards, computer desks, etc.). 【Portable Storage Case】The hole saw comes with a sturdy and compact storage case, making it easy to carry. You can organize these drilling tools neatly for easy and convenient retrieval and storage. 【12 Sizes】Includes 12 saw blade sizes: 19/22/29/32/38/44/51/64/76/89/102/127 mm, 1 large adapter with center drill, 1 small post, 1 special gasket, and 1 special hex key. Covers the most common hole saw sizes on the market and meets various daily needs. 【Woodworking Aid】This hole saw set comes with a positioning drill that helps you easily cut holes. This hole saw set can be used with common hand drills, impact drills, electric drills, flat drills, and more.