DW,Zip on the vibration ,and a penny ,with Teresa was scrolled in script with this machine! I glued the penny on some thin wood and went to town on it!Ugh, now your making me get on the floor to see if it takes pinned blades ,hang on, I went thru great pains to get down and try to get a clear picture for you in a crampt up room but i tried.Yes it will take pinned blades. The arms in the back have giant roller bearings that you would see on a car axle.incredibly Hugh.I one my first one added Zerk grease fittings so i could pump grease into them one time to make them last a life time.But i burnt out the circuit board first.Very quiet saw too!