The Pro-Graad CR-9X5 CR-9 Standard Tapered Type Mandrels for Cartridge Rolls offer a convenient solution for mounting and using cartridge rolls in various applications. This pack includes 5 mandrels featuring sharp threads that securely hold cartridge rolls in place during operation. Constructed from high-grade carbon steel with a black oxide treatment, these mandrels ensure durability and a rust-proof finish for long-term use. The quick-change design allows for easy removal and placement of new cartridge rolls, enhancing efficiency in workflow. With dimensions of 1/8" x 1" Pilot Length x 1/4" x 1-3/4” Shank Length x 3-1/2” Overall Length, these mandrels are compatible with straight and tapered type coated abrasive cartridge rolls with a 1/8" center hole. Whether for professional or personal use, the Pro-Graad CR-9 mandrels provide reliability and ease of use, making them an essential tool in any workshop or garage.