The gap for cutting cardboard is only 3mm high, too narrow for fingers to reach the cutting rod. A clear cap is also set to be added in the final version for extra safety.

ChompShop, a Philly-based company that created a kid-safe cardboard-cutting saw, will appear on ABC's "Shark Tank" on Friday at 8 p.m. The tool was created by Penn graduates Kausi Raman and Max ...