With a simple design and high-quality materials, this grinding wheel drill bit delivers excellent sharpening performance, saving time and effort. Ideal for fast drilling, tapping, and other applications. Features a quick-change composite cone that operates on the drill edge principle. Enhances drill bit usability, reduces the need for frequent replacements, and helps save money. Features - Color: As shown - Material: Plastic, Corundum Wheel, Metal - Size: Approximately 17 x 5 x 1 cm / 6.68 x 1.97 x 0.39 inches - Made from premium materials for durable, long-lasting performance - Easy to install and use; restores worn drill bits - Quick-change composite cone based on drill edge principle - Increases drill bit efficiency and reduces replacement costs - Suitable for use with iron bits and motor bit replacements