These Lassco Wizer 2.5" long Style A 5/16" hollow paper drill bits are designed to fit Lassco Wizer Spinnit HL-3 Paper Drills to give you the ultimate in paper drilling. Available in a variety of sizes and styles (standard, standard coated, premium, and premium coated), these Style A 2.5" deep Lassco Wizer 5/16" hollow drill bits make your paper drilling jobs quicker and easier. MyBinding.com carries a wide variety of paper drill bits to fit your every need, be sure to check them out today and save. Product number PD516PT-2.5.