McGill Adjustable Paper Drill 2-3 hole these drills will punch 6 mm holes in up to 250 sheets of 45 lb. paper at one time. You can punch 1, 2 or 3 holes with this punch. The punch heads slide on a rail so they may be adjusted and secured anywhere along the rail Very easy, to drill, you twist each handle to "drill" through the paper with ease 1/8" Punch Heads are available for a smaller hole