https://www.jpcorry.com/jp-corry-products/era-euro-cylinder-thumbturn-satin-chrome/
ERA Euro Cylinder & Thumbturn- Satin Chrome
Description
British standard restricted euro profile 10 pin cylinder grade 2 with key on the outside and thumb turn on the inside, provides convenient locking and unlocking from the inside without the need to have keys in hand - great for use on regularly used doors.
​These cylinder locks are anti drill, anti pick, quaity assured and suitable for fire doors.