Crown Revolution Brass Clamped Probe Tip w/2 Blades is designed specifically for use with the Crown articulated Revolution Hollowing/Scraping Blade, making it an excellent choice for hollowing deep vessels and other turnings, even in hard-to-reach areas. The blades included are cryogenically treated, which enhances their wear resistance and edge retention, ensuring long-lasting performance. This set comes complete with an articulated extender link and two blades, each approximately 1-1/2 inches long, providing versatility and precision for your woodworking projects. Crafted with quality in England, this probe tip is a reliable addition to your tool collection. Model Number: REV25