Letter opening machines are a piece of essential mailroom equipment that streamline your business mailing process by quickly and efficiently opening mail, letters, or sealed envelopes. These electric letter openers come in various sizes ranging from hand-held desktop models for occasional use to high-speed commercial letter openers for large mailrooms. Whether you need a manual machine or one with an automatic feed to open stacks of envelopes in no time, Martin Yale letter openers are a great investment.