A tri-cone drill bit is a type of rotary roller bit used primarily in drilling operations, such as in mining or oil and gas exploration. It consists of three rotating cones with teeth or cutters that break up the rock as they roll over the surface. This design makes it effective for drilling through hard rock formations. Cross-cut and button bits are different types of drill bits used for other purposes, and a button drag bit is not a standard term for tri-cone bits.
Thus, the correct answer is Rotary roller bit.