SEM hard drive crushers deliver extreme pressure to hard drives via a conical hardened steel punch that causes catastrophic damage, rendering them inoperable. Choose an automatic or manual crusher. SEM hard drive crushers are small enough and quiet enough to be used anywhere, even in office environments. SEM Model 0101 hard drive crusher is listed on the NSA/CSS Evaluated Products List for hard drive destruction devices at a rate of 204 drives per hour.