Pro-Lok - Standard Follower

A follower holds the top pins and springs in the cylinder shell while you slide the plug out to change the key pins. Push the follower in behind the plug, the pin chambers stay loaded, and you rebuild the plug without dumping springs across the bench. The Pro-Lok Standard Follower is machined aluminum with a green anodized finish and has two different end configurations, so one tool covers both ends of the job.

Yes. The .495 inch diameter Pro-Lok Standard Follower is listed for Arrow, Schlage, Kwikset, Corbin & Russwin, Ilco, Eagle, Lockwood, Sargent and Weiser cylinders, among others. That diameter is the common size for standard knob and lever plugs across those brands, which is why one follower covers a mixed-brand building.

The Pro-Lok Standard Follower is .495 inches in diameter, which is the size that matches standard knob and lever cylinder plugs. A follower undersized for the shell lets pins drop past it, and one oversized will not enter, so match the diameter to the plug rather than guessing.

It is sized for standard cylinder plugs at .495 inches and is listed for Arrow, Schlage, Kwikset, Corbin & Russwin, Ilco, Eagle, Lockwood, Sargent and Weiser. Small format interchangeable cores and many mortise cylinders use a different plug diameter, so check the plug you are working on against .495 before relying on this one for that job.

It is machined from aluminum to exacting tolerances and anodized green. Aluminum lets the tool be cut close to the plug diameter without the weight, and the anodizing gives a colored surface that is easy to spot in a pinning tray. The tight tolerance is the point: a loose follower is how springs get lost.

One handles a cylinder at a time, but locksmiths working through a fleet of doors usually keep more than one on the bench so a plug can sit followed while the next is opened. The Standard Follower comes in a single configuration, model LT371-495, so there is nothing to choose between when you order more of them.