Powered by Makita’s 18V 4.0 Ah Lithium-ion battery the DCS550RMJ Metal Saw is designed to make light work of your job, along with the 136mm blade diameter & 20mm bore diameter. Operating with 3600rpm maximum speed the DCS550RMJ is a high power, lightweight & manoeuvrable design. LED job light creates an easy to trace cutting line & high comfort grips provide a secure hold.