The world’s first brushless die grinder that delivers corded performance with up to 25 minutes of grinding and up to 10X longer motor life. The M18 FUEL™ 1/4 In. die grinder delivers maximum sustained power with 20,000 RPMs capable of running carbide burrs or up to 3 In. flap wheels for grinding or surface preparation applications. The M18™ REDLITHIUM™ XC5.0 battery provides up to 25 minutes of grinding with superior pack construction and electronics. The POWERSTATE™ brushless motor provides up to 10X longer motor life and lower cost of ownership than traditional brushed motors. The die grinder features REDLINK Plus™ intelligence, the most advanced system of cordless power tool electronics, for maximum performance and longest too life.