Stewmac Adjustable Tension Bass Tuner Set (4-in-line, chrome)

High quality 22:1 gear ratio bass tuners with smooth, precise operation. Economical bass tuners with smooth, precise operation. 22:1 gear ratio, Allen-adjustable gear tension, die-cast baseplates, slotted string posts and "elephant ear" knobs. Screws and press-fit peghead bushings included. 23/32"-diameter pegholes required. Use a 2.5mm hex wrench to adjust the tension. Pilot holes required: Installing delicate screws such as these into hard maple requires great care and accuracy. We highly recommend using a No.50 bit for the pilot hole before installing these screws. Lubricate the screw threads with cutting lubricant (also wax or a bar of soap) to reduce friction and help them thread properly.