Neck spacing is usually 50mm spacing consisting of one screw Bobbin and one slug Bobbin. Bridge spacing is usually 52.5mm spacing consisting of one screw Bobbin and one slug Bobbin. on the screw side of the bobbins the counter sink is 4mm deep.
Yamaha Trombone Rotary Valve Stop Arm, Stop Arm Screw and String Screw Set
HaloVerde 5 Pcs Trumpet Screws, a professional Trumpet Instrument Accessory for Slide Finger Ring Screw and general Trumpet Screw Replacement needs
Screw and pin set for original vintage one- and two-pin corners
Toyvian Trumpet Care Kit Small Valve Repair Set with Water Key Spit Valve Spring Screw and Base Assembly for Brass Instrument Maintenance Replacement and Cleaning
Homoyoyo 10pcs Trumpet Valve Slide Screw and Water Key Spit Valve Replacement Kit with Metal Material, Strong Compatibility and Easy Installation for Trumpet Accessories
Alasum 10pcs Trumpet Water Key Valve Assembly Repair Set Screw and Cork for Valve Guard and Instrument Cleaning
