Key product features Extremely powerful motor 1900 watts with a chain speed of 12 ms for outstanding cutting performance. Easy to use SDS system for tool free changing and tensioning of the chain. Extremely robust top quality for frequent use and long life. Other product advantages Optimum balance for working in any position. Bosch SDS for tool free chain replacement and tensioning. Extremely high chain speed of 12 ms. Rapid reaction kick back brake Quick Stop. Ergonomic handle for both sawing and felling. Steel tines for a firm and secure grip. Large oil reservoir 200 ml with level indicator. Steel chain safety catch bolt.