What does the "LR" indicate in the 690LR model number? Support September 30, 2022 18:36 Updated The "LR" stands for lever release. Related articles Where can I find a service center to repair my tools? Can I use hot water in my pressure washer? Can liquid blade coolant be used with the 1410 metal cutting saw? What is the motor diameter of the Porter Cable 7815 router? What are air compressor tanks made of? Comments 0 comments Please sign in to leave a comment.