The Adjustable Multi-functional Woodworking Hole Opener is a versatile tool that be adjusted to accommodate different hole sizes, making it suitable for various materials. It is compatible with common wood boards, gypsum boards, plastic boards, and aluminum boards. With its high hardness alloy drill bit, it provides a durable and efficient drilling experience. It is easy to use and does not require professional skills, making it suitable for DIY enthusiasts and professional carpenters. In addition to drilling, it also be used for positioning, marking, and cutting. Features -Color:Multi -Material:Alloy,Steel -Size:14.60X14.60X10.80cm/5.74X5.74X4.24in -The adjustable design of this versatile hole punch tool allows for a range of hole sizes to be created with ease. -This hole punch tool is compatible with a variety of materials including wood boards, gypsum boards, plastic boards, and aluminum boards. -The high hardness alloy drill bit used in this tool ensures both durability and efficiency during use. -This hole punch tool is easy to use, making it suitable for both diy enthusiasts and professional carpenters alike. -With its multifunctional design, this hole punch tool be used for positioning, marking, and cutting in addition to hole punching. Package list: 1 x Round Drill Bit