Hammerhedd was formed in 2012 by guitarist Henry Ismert, drummer Eli Ismert, and bassist Abe Ismert. The brothers were aged 9, 7, and 4 respectively.[4] The members are largely self taught and managed by their mother.[5] In 2016, a video of the band playing covers of Metallica songs went viral.[6] Impressed with the young age of the trio, Metallica publicly reposted the video. The band subsequently turned down requests to perform on America's Got Talent and The Ellen DeGeneres Show.[5]
In 2018, the band released their debut EP Essence of Iron.[7] That October, they were offered a record deal by Attila frontman Chris Fronzak.[8] In 2021, they released the LP Grand Currents, which was distributed by The Orchard.[9] They subsequently released music videos for the singles "Foundation" and "Sediment".[10][11]
In 2022, Hammerhedd was on tour with Swedish metal band In Flames. They released three singles, "Tunnel", "Fruition" and “Pioneer To Be”.[12][13] The songs appeared on their sophomore LP Nonetheless, released on February 24, 2023.[14] In February 2024, the band independently released their third album Not Important.[15]