Hope you're gonna be OK,Bri.
I have a grinder that I use as a jambsaw.I bought a 4 1/2" Freud carbide tipped blade for it that has a maximum speed of 12,000 rpm.The arbor hole is a bit smaller than 7/8" so I used a Dremel to remove about 1/16.Only takes a few minutes to do that.The blades cost me about $50 but they last a long time.
Works just as good as a jamb saw,except that it doesn't have the adjustable guide.Although for most tiles(5/16-3/8"),resting the guard on the prepared floor while cutting the casing works well.
I recently bought a Japanese pullsaw for undercutting casings and jambs,after seeing Rob's.
Wow,this saw is awesome.Effortless cutting.Looks cool too.
