SafeSlice – Compact Safety Box Knife

SafeSlice – Compact Safety Box Knife 🔪📦

A small, satisfying, and practical utility knife designed for everyday package opening without turning your fingers into part of the unboxing experience 😄

This compact safety box knife features a smooth sliding blade mechanism with a built-in safety lock, making it perfect for opening boxes, cutting tape, and handling all the cardboard chaos that mysteriously appears after online shopping.

🔧 Required hardware

1× ballpoint pen spring

1× standard trapezoid utility blade

⚙️ Assembly

      1. bend both the ends of the ballpoint pen spring 

(shown in picture) 

      2. Attach the ballpoint pen spring between:

the small tab on the push handle

and the small tab on the blade slider

(shown in pictures)

Insert the completed push handle assembly into the casing

Slide the safety lock into position

Finally, place the trapezoid utility blade into the knife

And just like that — your cardboard destroyer is ready for action 🔥📦

✨ Features

🔒 Built-in safety lock
🖐️ Compact ergonomic design
📦 Perfect for boxes, tape, and daily use
🖨️ Easy to print and assemble
😎 Small enough to carry almost anywhere

Whether you're opening filament boxes, online orders, or yet another package you forgot you bought… SafeSlice is ready.