Get this instead. Black & Decker LDX172C 7.2-Volt Lithium-Ion Drill/Driver https://www.amazon.com/dp/B005LTNLDI/ref=cm_sw_r_cp_awd_Z-pRwb9BYDFSK
According to the comments on amazon, it's only one speed despite the fact it says "Two drill speeds" in the description there.
> normal household hammer drill.
This is a 'normal household drill'. It is not a hammer drill.