Heads up: many models on this page are AI-generated or uploaded untested. They may be misconfigured for the intended application — check the dimensions and tolerances, and verify or edit the model before printing or relying on it.*
Letter And A4 Fold-Gauge Bone Folder
A 169 x 22 mm bone folder with a hook stop at one end. Notches set at exact fold distances let you tri-fold or half-fold paper square without measuring: the front edge has 93.1 mm (US Letter ÷3) and 139.7 mm (Letter ÷2), and the back edge has 99.0 mm (A4 ÷3) and 148.5 mm (A4 ÷2). Hook the stop over the paper edge, nick the paper at the notch, fold, then crease with the 1.6 mm tapered tip. A 6 mm hole lets you hang it on a pegboard.
Paper Stack Jogging Corner Block
This gusseted 90° corner block squares a loose stack of up to about 40 mm of paper, so it's ready for stapling, punching or the guillotine. Tap the stack into the corner and it lines up. The two 100 mm long, 40 mm tall walls are 4 mm thick. A 6 mm relief bore at the inside corner lets dog-eared corners seat flat, and the cut-away diagonal floor lets you lift the stack straight out. The whole block is 115 x 115 x 40 mm and needs no hardware.