HUATOOL piano tuning tool 0400A-1 White key weight measurement weight copper/weight 80g DIY piano tool
$14.89
Description
Item: 0400A-1 white key weighing poise.Material : copper.How to use：when unscrew，can be divided into 8 parts，each part has weight identification. total is 80g.Main purpose and usage measure the weight of the lower key.After placing the key sureface above the position played by the fingers，the weight of grams when the key are pressed down slowly shall prevail. Prior to testing ，the corresponding parts shall be smoothly operated.
