As far as a cordless hammer drill, I search on Google and found this aritcle https://www.powertoollab.com/best-cordless-hammer-drill/ A cordless drill, it would depend on the type of work you are going to do. The Makita brand offers a lithium-ion battery that charges in 1/2 the time as a dewalt. Dewalt though is very popular for their durability. I myself is partial to Bosch brand, I also have a Hilti cordless that does not get much use. but my friend told me that they are expensive, and don't go less than 18 Volts. What is the best hammer drill? Do you have any suggestions?