How to dice a tomato in 40 seconds - A trick is not to move the elbow position - 

Thank you for watching! Knives and Cutting board used in this video are as follows;
- 24cm Chef knife (iiza, 1310)
- 20cm Chef knife (zwilling, twin cermax MD67)
- 13cm Petty knife (zwilling, twin cermax MD67)
- Cutting board 500mm×330mm×20mm(Parker Asahi, Synthetic Rubber Chopping Board)
It is important not to move the elbow position as much as possible.