Heavy-duty chisel point staples in the 1/2" wide crown & 3/8" leg length come in strips of 100 & fit 73131, 73135, 73136, 02033, 73110 & 73159 staplers. They staple 30 to 60 sheets. Electric chisel point staples in the 1/2" wide crown & 1/4" leg length come in strips of 210, fit R100, R101, R90 & R65, & can bind up to 20 sheets. The electric chisel point staples with 1/2" wide crown & 5/16" leg length come in strips of 210, fit R100, R101, R2 & R1 & can bind up to 50 sheets.