The 40V max XGT® Recipro Saw (GRJ01Z, tool only) delivers faster cutting speed for cutting and demolition applications. Makita-built variable 2-speed brushless motor delivers 0-2,300 (low) and 0-3,000 (high) strokes per minute. XGT® technology delivers up to 145 cuts per charge in 2x10 SPF lumber using one XGT 4.0Ah Battery (sold separately). The XRJ04T is equipped with efficiency features for faster cutting. The long 1-1/4” stroke length increases cutting efficiency, and the refined crank mechanism design minimizes blade deflection and reduces vibration. Convenience features include a large two-finger variable speed trigger, electric brake, built-in L.E.D. light and a tool-less blade change for faster blade installation and removal. Ergonomically designed handle for difficult cutting applications, such as overhead. XGT is a system of equipment, tools, batteries and chargers utilizing 40v max lithium-ion batteries. XGT is engineered to deliver high power to take on high-demand applications, allowing users to completely transition to a cordless job site. XGT is equipped with advanced brushless motor engineering, intelligent digital communication, and superior durability features to outpower, outsmart and outlast the competition.