You can use a circular saw to cut holes out of the middle of a sheet of wood, but it requires a steady hand and a little practice.  all you need is to therefore Set the blade to the correct depth and align the guide mark with your cut line.This machine  has a blade guard which is the most important safety feature of the tool, because a circular saw takes time for the blade to come to a complete stop after a cut has been made.product features include: Voltage:220-240v~50/60hz · input power:1600w · no- load speed:5000rpm · blade diameter:185x20mm · cutting capacity: 45 degree:44mm. these features make this machine an affecient and of good quality , thus making work easier