Probably the most used power tool for building will be the “power saw”! I’m 77yo
and used a bunch of cheapo “get by” power saws in my early " broke" days.
They’re too light and under powered, vibrate and jump around resulting in poorly
aligned cuts that don’t fit well and they don’t last. JUNK!
The best saw, by far, IMHO is the 7 1/4" Dewalt 5007 NB, 13 amp, 5800 rpm saw, hands down.
I’ve had mine for 25 or so years and it runs and cuts as well as it did on day one. I’ve framed house after
house including my own house and shop and it still runs like new. A GREAT saw!!!
Another “must” for remodeling is the Makita “reciprocating saw”. Mine is model JR 3000 V with
a 1 3/16" stroke. ) speed control trigger handle to 2300 SPM- strokes per minute. Another 25 plus
years of great trouble free operation! Blades to cut wood and metal.
Another long life favorite of mine is the Dewalt 18 volt 1/2" cordless drill driver, model DC 970.
And one of the handiest and toughest hand held battery powered skill saws is the 18 volt 5 3/8" Dewalt trim saw model DW 936.
It’s a trim saw but it will cut 2x 4’s in a pinch!
Time is money and these tools will save you time and save or make you money for a LONG TIME.
The greatest value tools on the market, IMHO!
I have several others I’ll dig out and get numbers for you.
You will not be taken by or disappointed with the above tools. Low price is not even a consideration
for tools that will last you for a life time.