This product is designed for slotted, wood screw holes. Woodworking cutter intended for use with portable and desktop woodworking engraving machines; not suitable for electric drills, drilling machines, or similar tools. Suitable for processing hardwood, cork, wood, and other synthetic wood materials. Avoid use on copper, iron, metal materials, sand, stone, or other non-wood materials. Wide application, made of high-quality hard alloy with high toughness, excellent wear resistance, high-speed cutting capability, high hardness, abrasion resistance, efficient performance, and long service life. Name: Extra Long Straight Router Bit Use: Woodworking Tools Diameter: 8mm Length: 113mm Material: Hard alloy Color: Yellow Package Contents: 1 x Straight Router Bit Note: Only the above package content is included; other items are not part of this package. Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3cm.