Iyoroi

Founded during the Bunkyū Era (1862), Iyoroi is one of the oldest continuously operating chisel workshops in Niigata. The 6th generation continues to forge chisels using traditional methods including water quenching — a technique that produces harder, more brittle steel than oil quenching, demanding a higher tempering skill but yielding exceptional results. Their chisels are prized by temple carpenters for their longevity.