"FLAT CLINCH" Series used for paper coin holders. A regular stapler leaves two bowed arches on the back of each staple. These bows can catch on the surface of coin holders or even tear the window of other paper 2x2 holders. For years, numismatists had to use plyers to laboriously flatten each staple with needle nosed plyers. The flat clinch stapler ensures each staple lies flat, eliminating the time-consuming task of flattening each staple. Staples 2-30 sheets of 20lb paper with a load capacity of 210 standard staples. Use with standard staples or No. 35-5M, 3-1M.