Upgrade your reclaimed boxes and bags by adding sturdy wire handles for easy...

https://wiki-site.win/index.php/What_Drill_Bit_Makes_Clean_Holes_in_Cardboard_for_Wire_Handles%3F

Upgrade your reclaimed boxes and bags by adding sturdy wire handles for easy carrying and better durability. Use 2-3 mm galvanized wire to keep handles strong and rust-resistant. Drill 3-3.5 mm holes to fit the wire snugly without damaging the material