Set of tuning hammers for piano tuning. Comes with 3 adapters. Compatible with various model standards such as Yamaha and Steinway.

■Set of piano tuning wrenches

Adapter type: 3 adapters

■Adapter shape:

Star type: 6.5 to 6.9mm

Star shape: 7.0 to 7.9mm

Square: 6.2mm

■Weight: 0.5kg

<Remarks

■Size of tuning pins of each piano company

Yamaha: 6.9-7.20mm

Kawai: 6.9-7.15mm

Steinway: 7.25 or larger

Bösendorfer: 7.25 or more