I know, we're wood guys but any suggestions here are appreciated. I have to make some surgical cuts in a mortar bed and tile stall shower. The shower walls and pan will be a complete demo. But the entry jamb locations require perfect cuts to preserve the obsolete tile wainscot and existing floor.
I intend to make careful plunge cuts along existing grout lines and completely through the mortar bed and sheetrock beyond. Once these cuts are made I am confident the shower demo can be completed without damaging the exterior surfaces. I have a 5" diamond wheel for my grinder which may be accurate enough. I have looked into tile cutting blades for my oscillating Fein Tool. The available blades are advertised as "grout cutting" with very little info regarding deep tile cuts.
Anybody?
Mark