Features: - These tongue and groove router bit set is truly versatile for your extra convenience. - This router bits are designed for portable and desktop woodworking machines and cannot be used on machines such as electric drills and drill presses. - Can be used for hard wood, softwood, synthetic board and so on to produce a smooth surface, but to avoid processing copper, iron and other metal materials and sand, stone and other non-wood materials. Specifications: Material: Carbide Tooth width: 1/4" Tooth depth: 1/2" Processing template thickness: 13-19mm Package included: 2 x Router Bits Notes: 1. Manual measuring, please allow 1 ~ 3mm error,thank you. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the picture.