The ABUS E60 Euro profile half cylinders are suitable for switch gear & garage doors They have precision, mushroom pin and paracentric keyway which offer comprehensive anti-pick protection, also they have a hardened steel anti-drill spring & pin protection with 8 anti-drill pins in every keyway. For emergency and convenience feature the outside key can operate the lock with internal key in place. How to measure a Euro Profile Cylinder Distance from one end of cylinder to centre of cam