1. Complete Set: This 3-piece set includes lock hole cutter woodworking milling cutters with an 8mm shank. Each set includes a wood picture frame hanger T-type keyhole cutter and a chisel cutter, providing you with all the necessary tools to create precise and clean lock holes. 2. Versatile Application: These milling cutters are perfect for woodworking projects that require lock holes, such as installing door locks, cabinet locks, or other hardware. The T-type keyhole cutter creates slots for picture frame hangers, while the chisel cutter allows for more intricate designs. 3. High-Quality Construction: Crafted with durability in mind, these lock hole cutters are made from premium materials to ensure long-lasting performance. The sharp cutting edges provide clean and smooth cuts, minimizing the need for additional finishing work. 4. Easy to Use: Designed for convenience, these milling cutters are easy to install and use. Simply attach them to your woodworking machine or drill, and you'll be ready to create precise lock holes effortlessly. 5. Enhance Your Woodworking Efficiency: With this 3-piece set of lock hole cutter woodworking milling cutters, you can enhance your woodworking efficiency and achieve professional results. Whether you're a DIY enthusiast or a professional woodworker, these tools will help you save time and effort on lock-hole installations. Invest in this set today and take your woodworking projects to the next level. Specifications: Item: keyhole knife (3Pcs) Material: carbide Size: 8*5/16 8*3/8 8*1/2 Package contains: 3pcs* Milling cutter Note: Please allow 1-3mm differences due to manual measurement Due to the different displays and different lights, the picture may not reflect the actual color of the item. Thanks for your understanding