Specifications Shank Diameter 1 4 inchCutting Length 2 25 inchesTotal Length 2 5 inchesMaterial Solid Carbide with Blue Nano nACo CoatingIncluded Angles 15° 20° 30° 60° 90°Maximum R P M 24 000Features 1 High Performance Nano Coating Each bit is equipped with innovative Blue Nano nACo coating delivering excellent heat resistance and enabling smoother and sharper cuts for premium carving results 2 Industrial Grade Solid Carbide Design Made of solid carbide material ensuring precision and consistent cutting performance ideal for professional level engraving tasks 3 Versatile Application Designed to work seamlessly on softwoods hardwoods plywood MDF acrylic particle board and laminated surfaces achieving clean and accurate results every time 4 Wide Range of Angles This set contains V Groove bits with five different angles 15° 20° 30° 60° and 90° perfect for intricate detailing lettering sign making and chamfering 5 Extended Tool Life Advanced nano coating allows up to 2 5 times longer lifespan compared to standard uncoated bits reducing the need for frequent replacements and providing cost effective woodworking ways Package Included 1 x 15° V Groove Router Bit1 x 20° V Groove Router Bit1 x 30° V Groove Router Bit1 x 60° V Groove Router Bit1 x 90° V Groove Router Bit