A Core deposit is a form of deposit you pay until returning your old part. If you don't have the core at the time of purchase, you must pay the core charge. That charge is refunded to you when you return the core.
M12 FUEL™ takes 12-Volt technology to the next level of performance. Milwaukee® M12 FUEL™ features a POWERSTATE™ Brushless Motor, REDLINK PLUS™ Electronic Intelligence and REDLITHIUM™ Battery Technology, resulting in longer motor life, more run time and more power. The POWERSTATE™ brushless motor works harder and lives longer than all leading competitors, while reducing noise and cooling more rapidly to deliver years of maintenance-free performance. The M12™ REDLITHIUM™ XC4.0 Battery provides up to 4X more runtime than standard Lithium-Ion batteries. REDLINK PLUS™ Intelligence hardware and software is the world’s most advanced system of cordless power tool electronics that will maximize performance and protect your investment.