So you have a vintage Fender or Gibson guitar, could even be a reissue that uses a vintage peghole with vintage tuners but you prefer a locking tuner? Tired of looking for something that forces you to drill your guitar leaving ugly holes and depreciating it's value? Look no further - Kluson introduces the 100% no-mod-required locking tuner using the original stamped steel housing, mounting screw pattern and push-in bushing. Kluson added it's most popular and current double line branding to the back of the housing proudly in all caps for easy recognition. This Kluson tuning machine set meets the demands of the modern player with an easy to operate string post locking mechanism making secure string changes faster for the working musician without changing the overall appearance of a vintage styled instrument. So how does the locking mechanism work? The tuning post is effectively in two sections. The top half screws down onto the bottom have an in doing so, extends a small pin into the string hole of which clamps up against the string and locks it into place. Please refer to the secondary image for a more detailed view. Important Specs and Dimensions: String Post Overall length including cap = 1 inch String Through Hole ctr Height = 23/32 in. Comes with Kluson standard bushings. See part MB65N US for specs Uses same footprint as original stamped steel Kluson tuners