The DeWalt NA613026 1/2in Collet & Nut Assembly is a replacement router collet assembly for compatible DeWalt DCW620 cordless plunge routers. The 12.7mm collet securely holds compatible 1/2in shank router cutters during operation and is suitable for replacing a worn, damaged or missing original collet and nut assembly. Manufactured to the correct specifications for a precise fit and reliable cutter retention.