Beaver 6900 Mini-Blade – Grindless, straight, sharp all around, 180 degree cutting surface, double bevel blade, blue. Beaver’s Mini-Blades are manufactured using a proprietary grindless technology that yields consistent sharpness and blade geometry and are available in a variety of designs to meet all small incision and excision needs. Beaver Mini-Blades are preassembled into a unique, patented tip, designed for safe assembly and ease of use. Each Mini-Blade is color coded for easy identification. Packaging: 20/Box.