The Dremel 8200-20 Cordless Multi Tool has been designed for use on more demanding jobs, like cutting & grinding both indoor as well as outdoor in a range of materials. The 8200 has a 10.8V Li-ion battery with ECP technology & a quick 1-hour charger & the compact & efficient electric motor you can tackle any projects with greater ease & effectiveness which makes the speed of the cut even 2x faster!