The Scheppach HS 510 log saw has a large 505 mm tct sawblade will allow you to saw through logs 170 mm in diameter in a single pass. However, by rotating the log around & making a cut from the opposite side, this will then slightly increase the cutting capacity & allow you to cut through logs 170 mm in diameter. The HS 510 is totally safe & easy to use & works by placing the log on the machine & then simply push the cradle forward where the retractable guard springs back & the log is sawn off at the desired length. This heavy duty log saw is powered by a 3.5 hp induction motor & is the ideal machine for those who want to make light work out of reducing long logs down to a manageable size for wood burning stoves.