Seven smallest bits are used with the 1/4" bit holder
Three largest bits are used with the 3/8" bit holder
All twelve pieces come in a convenient vinyl holder
Ten hex insert bits with two bit holders. Seven smallest bits are used with the 1/4" in. bit holder. Three largest bits are used the 3/8" in. bit holder. All twelve pieces come in a convenient vinyl holder. Includes Torxr sizes T-10 thru T-55.