This set of 4 in line Schaller Original F-Series BMF Bass Tuners come in the classic open back design with elephant ear/clover leaf buttons and feature a 1:20 gear ratio for tuning up quickly and accurately. Their size fits most Fender CBS Style USA '67-'82 Fender P & J Basses. The 4 screws per tuner (included) fix the machine heads to the back of the headstock and the knurled push fit bushing secures the string post on the front of the headstock.

These tuners come set up for right handed basses as standard but the worm gear/button shaft can be removed and reassembled flipped over to change these to fit left handed basses.

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