The Metabo GPA18 LTX 5.2Ah die grinder features a robust, high performance and wear resistant motor with a slim motor housing ideal for metal working applications. The hardened and ground collet chuck gives you ideal balance and control over the surface you are working on. The GPA18 LTX features Metabo ULTRA-M 5.2Ah Li-Ion batteries that are packed with the highest quality battery cells and the most advanced technology, providing up to 75% longer run times than leading competitors. The 5.2Ah 18V batteries feature electronic monitoring on each individual cell for increased protection and maximum battery durability, while an LED charge capacity indicator shows the charge at the touch of a button. The Metabo AIR-COOLED Charging system charges up to 30% faster for less down time, and protects the battery cells for significantly increased battery life.