The Bosch 2610008122 Collet Chuck is a genuine OEM replacement part designed for precision and durability. It is specifically crafted to fit Bosch routers such as the PR10E, PR20EVS, and PR20EVSK models. This 1/4-inch collet chuck provides a secure grip on router bits by forming a collar around the bit and applying a strong clamping force when tightened, typically via a tapered outer collar. Its self-releasing design ensures ease of use during bit changes. Weighing only 0.03 lbs, it is lightweight yet robust, making it ideal for woodworking and other applications requiring high precision. Installation is straightforward, requiring just a wrench for quick setup. This part replaces obsolete models like 2609160084 and 2609110228 and is covered under Bosch's full manufacturer warranty, ensuring reliability and quality performance.