[High Quality Material] The hole saw kit is made of excellent quality high-power carbon steel. It has high-speed steel teeth that are useful for fast and fine cuts. The most important thing is that it has exclusive gear designs that provide the best quality service to create different holes perfectly. [Perfect for Making a Hole] This is an all-in-one product! It is amazing, you can make holes according to your needs. It is high-precision, power-resistant, wear-resistant, creating smooth cutting edges. [Suitable for Various Materials] It will be a great helper for use on normal wood, plastic, and thin PVC boards. The hole saw kit has powerful cutting force and great durability for long-term use.[Convenient to Work] This is a hassle-free and safely organized product that is protected in a very convenient plastic storage case. So you will have no problem to do your work with the chucks and installation plate and you can easily store them for next use.[All Sizes You Need] This amazing product contains all sizes: 3/4" (19mm), 8/9" - (23mm), 1" (25mm), 1-1/8" (28mm), 1-1/4" (32mm), 1-1/2" (38mm), 1-3/4" (44mm), 2-1/8" (54mm), 2-1/2" (64mm), 3" (76mm), 3-1/2" (89mm), 4" (102mm), 5" (127mm) including chucks (2), installation plate (1) and plastic case (1).Material: High carbon steel qualityQuantity: 16 PiecesPackage Included:13 x Carbon Steel Hole Saw2 x Mandrels1 x Installation Plate1 Storage Box,"