Schaff Square Head Tuning Hammer with one-piece, non removable head.
These hammers are recommended for sweetening strings in between regular piano tunings.
Comes with 6-1/2" wood handle & nickel plated shaft with tuning tip. Overall length 12"

(The 5B tuning hammer is only used on tuning pins that are square all the way down the sides.) If your tuning pins are square on top but tapered down the sides, you require the Star Head #5A).