Yale Platinum 3 STAR EURO Cylinder Lock (Thumbturn) YS3-3545 NT 35/45mm (3 KEYS)
The YS3-3545NT (35 thumb side internal /45 key side External) protects against Lock Snapping, Lock Bumping, Lock Picking, Lock Drilling, Extraction and more. It is a keyed operation on outside and just twist of the thumb turn on the inside.