Here I show you my preferred method to removing a tile back splash.
Amazon Links:
DeWalt Angle Grinder: https://www.amazon.com/DEWALT-DWE4011-Small-Grinder-One-Touch/dp/B009ELXH1K/ref=as_li_ss_tl?_encoding=UTF8&psc=1&refRID=YPPK27JA6549ZF7HBQ8Z&linkCode=ll1&tag=greatwhitenin-20&linkId=ef689939d68e1d4fd71183b99b9ec94f&language=en_US
Bosch Angle Grinder: https://www.amazon.com/Bosch-1375A-2-Inch-Angle-Grinder/dp/B00004SUOU/ref=as_li_ss_tl?_encoding=UTF8&psc=1&refRID=DB56RVGJV43S1BR9YB7K&linkCode=ll1&tag=greatwhitenin-20&linkId=00cc8f1a41882f2accda2066cabe46a1&language=en_US
4 1/2" Diamond Blade: https://www.amazon.com/DEWALT-DW4725-Performance-Cutting-Continuous/dp/B0002Q8TIC/ref=as_li_ss_tl?_encoding=UTF8&psc=1&refRID=SC3KD6D2X4XR904MZN8K&linkCode=ll1&tag=greatwhitenin-20&linkId=6b73b69298e7f187b1d28ba4ce3cfa9c&language=en_US