Actually much shorter than in the picture. However, Sharp expected that they would be different. Also, the plastic case they came in was broken. I think they are all the same length. Might be wrong
Pros
β ELECTROPHORETIC SURFACE PAINTING: Complete grinding and anti-corrosion treatment, clean and sharp without burrs. The drill is more wear-resistant and durable. Fully Automatic Polishing: CNC polishing is fully automatic, each is unified.