Comprehensive Kit Contents: This package includes a U-type adjustable plastic guide template, two hole saws measuring 1inch(25 mm) and 2-1/8inch (54 mm), and an arbor with a drill bit. The saw blades have a depth of 50 mm, ensuring deep and precise cuts for lock installations. High-Quality Construction: Crafted from durable Metal, the hole saws and arbor offer longevity and robust performance. The guide template is made from reinforced plastics, providing stability and precision during use, ensuring a professional finish on every job. User-Friendly Design for Easy Installation: Featuring an adjustable guide template with snap-lock arms, this kit allows for quick and accurate drilling. It accommodates door widths and backsets effortlessly, making it ideal for both novice and professional users. Versatile Use for Common Door Sizes: Designed to fit the most frequently used lock sizes, this kit is compatible with wood doors ranging from 1-3/8-inch to 1-3/4-inch in thickness and backsets of 2-3/8-inch and 2-3/4-inch, covering a wide range of household and commercial doors. The actual product may have slight color difference or difference, which will not affect the use Colour:Yellow Material:Plastic + Metal Package Contents: 1 PC U-type adjustable plastic guide template 2 PCS 1inch(25 mm) and 2-1/8inch(54 mm) hole saws 1 PC arbor with drill bit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.