These #2 Duraspin replacement driver bits give users a sense of security, knowing there are high quality bit replacements available when they become necessary. The (2) EA0301 #2 Square bits are 7.75” long and work with Duraspin models DS312-18V and DS332-AC. The (2) EA0300 #2 Phillips bits are 7.75” in length and work with models DS312-18V and DS332-AC. All (4) bits are made of durable steel to stand up to challenging applications.