Feature 1These cutters are made from cemented carbide for long service life 2Sharp cutting edge would improve working efficiency and product quality 3There are two cutters in different sizes that you can use for different slots 4Usually use on electric trimmers or engraving machines for wood slotting 5They can be used for slotting pine wood, thin wood boards and other soft wood materials. Features: These cutters are made from cemented carbide for long service life. Sharp cutting edge would improve working efficiency and product quality. There are two cutters in different sizes that you can use for different slots. Usually use on electric trimmers or engraving machines for wood slotting. They can be used for slotting pine wood, thin wood boards and other soft wood materials. Specifications: Material: Cemented carbide Length: 47mm(1-3/4") Shank Diameter: 6.35mm(1/4") Cutting Edge Diameter: 12.7mm(1/2"), 9.52mm(3/8") Package Includes: 2 x Slot Cutters .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }