Weighing in at 5.13 lb. with battery pack, the W18LTX grinder's safety features prevent unintentional starts and kick-back. The batteries and charger are warrantied for three years and replaced at no cost if they don't charge. The W18LTX kit comes with two 18-volt lithium-ion batteries, a 30-min. charger, and carrying case. Also available as a tool only. No-load speed: 8,000 rpm.