There is more than one artist with this name:

1) One Inch Punch was the name of a grunge/hip hop act from Los Angeles fronted by Justin Warfield in the late 1990s that found some success in the UK. They were featured on the Romeo and Juliet Soundtrack with a song called 'Pretty Piece of Flesh'. In 1996 they released there one and only album called 'Tao Of The One Inch Punch' by the Hut Label which contains 10 freaky songs. Warfield is now known for his work in She Wants Revenge.

2) One Inch Punch a socially aware melodic hardcore band from Melbourne, Australia who changed their name to Mid Youth Crisis in 1997.

3) One Inch Punch was a Hardcore/Instrumental band from Mid-Missouri formed in 2001. The One Inch Punch has a solid, groove heavy rhythm section, discordant, soaring guitar lines, and minimalist vocals. Experts at creating dynamic tension, this power trio relies on the keen interplay between the drummer and the bassist who lay a foundation for the singer/guitarist's dissonant and spare sensibility. The One Inch Punch has been described as Neurosis meets Godspeed You! Black Emperor. The band parted ways after the realease of Horsehead Nebula their nine song debut. Drummer McCrady went on to play with Bald Eagle.

4) One Inch Punch, formed in 1993 was an Indie Noise band.