The Adjustable Multi-functional Woodworking Hole Opener offers a range of features that make it stand out. Firstly, its adjustable design allows for flexibility in hole sizes, catering to different needs. Secondly, it is compatible with a wide range of materials, including wood boards, gypsum boards, plastic boards, and aluminum boards, making it a versatile tool for . Thirdly, its high hardness metal drill bit ensures durability and wear resistance, providing a reliable and efficient drilling experience. Lastly, its user-friendly design makes it accessible to both DIY enthusiasts and professional carpenters, regardless of their skill level. Features -Color:Assorted Color -Material:Metal,plastic -Size:19.50X14.50X4.50cm/7.66X5.70X1.77in -Size:12.50X12.50X2.70cm/4.91X4.91X1.06in -Size:10.00X10.00X2.70cm/3.93X3.93X1.06in -Size:8.70X8.70X2.50cm/3.42X3.42X0.98in -Size:7.50X7.50X2.50cm/2.95X2.95X0.98in -Size:6.20X6.20X2.50cm/2.44X2.44X0.98in -Size:9.00X2.50X2.50cm/3.54X0.98X0.98in -The hole sizes of the multi-functional woodworking hole opener can be adjusted to meet different needs. -This versatile tool is suitable for drilling various materials such as wood, gypsum, plastic, and aluminum. -The high hardness drill bit ensures a durable and efficient drilling experience. -The operation of this tool is user-friendly and does not require professional skills. -In addition to drilling, this tool also has additional functionalities for positioning, marking, and cutting. Package list: 1 x Set of Round Drill Bit