By: Marukaku The Pentel Orenz AT and Uni Kuru Toga Metal are two premium Japanese mechanical pencils that take very different approaches to improving everyday writing. The Orenz AT focuses on automatic lead advancement and lead protection, while the Kuru Toga Metal uses Uni’s rotating-lead mechanism to help maintain a consistently sharp point. Both use 0.5mm lead and are designed for students, frequent writers, and mechanical-pencil enthusiasts, but the better choice depends