Bought a Ryboi D42 3/8" drill.
A bit of confusion first, when it states it's a 3/8" is that saying the diameter or circumference of the drill hole is 3/8"? or something else?
This drill is very good for it's price but I don't know what to do for bits and other extensions. Do I have to buy specialized parts/bits from Ryboi or can I use any bit that fits the 3/8" diameter/circumference?