The 40V Max XGT Brushless Lithium-Ion 4-1/2 in./5 in. Cordless Cut-Off/Angle Grinder with Electric Brake (Tool Only) (GAG01Z) delivers corded grinding performance without the cord for the most demanding applications. It’s powered by a Makita-built brushless motor which delivers 8500 RPM for heavy-load applications and increased power and speed. The GAG01Z offers up to 60% faster cutting speed when cutting No.5 (5/8 in.) rebar. It is ideal for grinding and cutting a wide range of materials including tile, concrete, pipe, conduit, and more.