JINYI Great Tool for DIY and House Repair Widely use on various kinds woods for DIY, wood carving, model making, pet house making, house repair and other wood working, a must-have carving tool to create your own masterpiece. 5 different sizesmeets different need.Material Made of high quality High Speed Steel for long life, strong and sharp, anti-corrosion, good wear resistance.Three Blade DesignMore efficiency, ideal tool for detailed work such as deep grooves, v-slots, curve patterns lines. Three blade design can fast discharge chips from the hole on sides automatically, suitable for carving, engraving, grinding, drilling and more, and leaving a smooth finish surface.Delivery Quantity: A set of 5 pieces, high-speed three-blade sharp knife electric engraving headPackage Contents: Only the above package contents, excluding other products.Size: Shank 2.35mmBlade: 2.35mm, 3mm, 4mm, 5mm, 6mm.(Reminder: The size is measured manually, there is a slight errorColor: silver