The TN-729 is equipped with an unparalleled1400W motor with a variable speed motor from 1000-3600RPM to push its 8" vertical knife thru most any materials.  The variable speed can help when cutting thru material that can sometimes be an issue due to heat build up from speed of cutting.  The TN-729 has a cutting capacity of 6.5" and can be equipped with Standard: Carbon Steel Optional: High Speed Steel, PTFE Coated, Wave and PTFE Wave.