Portable 3-hole punch is a perfect fit for most 3-ring binders, complete with clip-in rings, so the hole punch stays put. Punches 1/4 standardized
McGill Trident Portable 3-Hole Punch with Ruler, 1/4 Inch Round Holes, Color May Vary, 1 Unit (MCG600AS) : Binder Accessories And Supplies : Arts, Crafts & Sewing
Three Hole Puncher
Binder Hole Puncher
Punches
Prepare paper to be inserted into mini binders by punching it with this Staples six-sheet-capacity mini three-hole punch. Get papers ready to insert into mini binders with this six-sheet-capacity mini three-hole punch. The rounded corners and black coloring gives it a professional appearance, while the high-leverage design makes it easy to operate. This Staples mini three-hole punch can punch up to six sheets at a time, making it ideal for small or medium punching jobs.
Staples Mini 3-Hole Punch 6 Sheet Capacity
Swingline Portable Paper Punch Demo
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Desktop Tools & Accessories - mastersupplyonline
3 hole binder punch is a great portable tool that fits in any three-ring binder See-through front-edge ruler plus corner gauge offers instant paper
McGill Trident Portable 3-Hole Punch with Ruler, 1/4 Inch Round Holes, Color May Vary, 1 Unit (MCG600AS)
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Three Hole Puncher
Staplers & Punches - Valdes Supply
Master® 40-Sheet Heavy-Duty Three-Hole Punch with Gel Padded Handle, 9/32 Holes, Black
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McGill, 6-Sheet Trident Binder Punch, Three-Hole, 1/4 Holes, Assorted Colors (AVTMCG600AS)