Luke Skywalker referred to his modified airspeeder as using blasters, indicating that larger versions of blasters exist. Also, the Z-95 Headhunter, a snub fighter precursor to the X-wing, uses triple-blasters as its primary offensive weapon.
Differences from Turbolasers
Blasters are commonly thought of as small-scale turbolasers. However, blasters do not appear to be lightspeed weapons, although some evidence exists for their having an invisible damaging component that is just ahead of a visible bolt of waste energy.