My left hand was injured and only can use 20~30 % power.
Rotary hammer is heavy for me at the moment.
Anyway , i have test to drill on toilet's tile with bosch cyl9
ceramic 8mm drill bit. More holes cannot la....
Two holes only is ok for me.Each hole drill 5 to 6 times to cool down
the ceramic bit.
I used normal electric drill 450w which is smaller and lighter for 8mm ceramic
drill bit. Once pass through the tile , then used 8mm sds bit for rotary hammer.
Seems like not only cordless drill can handle the tile drill , normal electric drill
also can do the job as well. The only thing is can't adjust the drill speed like
what battery cordless drill can do....
The branded 12V cordless drill like bosch , makita or dewalt is not cheap ...
You cannot adjust the speed because you bought corded drill with no adjustable speed.
I have 750W corded hammer drill with adjustable speed. I also have rotary hammer for wall, concrete and heavier job when needed. I also have cordless drill driver for lighter job. I used whichever suitable for my task
I used to have 500W single speed drill last time. Can only use for very fast screwing