This tool, by Japanese manufacturer Nissin Boeki, is for resizing cardboard boxes. (If you've ever done this yourself, you know this is typically an inelegant process.) I find the design fascinating. There's an adjustable slider on the shaft. You'll use this as a "fence," after locking it to
Handheld Box Resizer Tool for Resizing Cardboard: Featuring a utility knife blade on one end and a retractable metal scoring wheel on the other for
Box Resizer Tool with Scoring Wheel - Utility Knife Cardboard Scorer, Reducer - Box Cutter Sizer Tool for Resizing Reducing Size of Shipping Boxes
Resizing Cartons with Associated Bag's Carton Sizer Tool
Carton Sizer Box Tool - Resizes / Reduce Cardboard Shipping Boxes
Terence Wing Tong Yung on LinkedIn: A Cardboard Box Resizing Tool
How to Use Carton Sizer tool
Box Resizer Tool with Scoring Wheel - Utility Knife Cardboard
Four Design Approaches to the Modern-Day Toolbox: Part 1 - OPO
Handheld Box Resizer Tool for Resizing Cardboard: Featuring a utility knife blade on one end and a retractable metal scoring wheel on the other for
Box Resizer Tool with Scoring Wheel - Utility Knife Cardboard Scorer, Reducer - Box Cutter Sizer Tool for Resizing Reducing Size of Shipping Boxes
Resizing Cardboard Boxes - Quick and Easy - With Just One Amazing
Buy Cardboard Box Resizing Tool with 3 Scotty Peeler Price Tag Label Removers -Utility Knife with Scoring Wheel: Pricemarker Labels - ✓
Cardboard Box Resizing Tool with 3 Scotty Peeler Price Tag Label Removers -Utility Knife with Scoring Wheel