The abus ke60 euro profile thumbturn cylinders are suitable for wooden aluminium most upvc 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 how to measure a euro profile cylinder a distance from internal end of cylinder not the thumbturn to centre of cam b distance from external end of cylinder to centre of cam thumbturn cylinders