I want to buy rotary hammer drill to drill holes in wall, Using for home diy purpose only.

I see MR.DIY selling for ~200. (warranty 15 days); some oem china brand selling <200 (1years). Which 1 is better?

off topic but somehow relevant, i dont want to open new thread to ask question. Hence, posting here.

Bought these expansion screws from MrD to mount pull up bar onto the wall (Couldnt find other type of expansion bolt). What is the thing circled in red?

ty. today i learn washer doesnt come only in conical shape

how to know which drill bit size to use for wall plug hole?

I have a DAEWOO corded rotary hammer drill with no torque selection. I want to use it as screwdriver drill to put some screws into woods.

Just checking if im correct to prevent buying wrong stuff and safety when operating:
1) I will buy a screwdriver phillips bit and potentially adapter(?). I'm not sure what should I be looking at? Can someone kindly link me any bit/adapter so I can use as reference when I buy at actual hardware shop?

2) I will switch to the mode circle in red in the picture.

I tried searching for SDS Phillips or SDS plus Phillips, but don't see any product. All the screwdriver bits are with Hexa tail..