Manufactured by Imadegawa & Co., Ltd. of Japan, these hammers have been the preferred choice for piano technicians nationwide. Imadegawa hammers, when first introduced were with Nippon felt in 1981 and decades later, technicians continue to rely on their quality and dependability.
Specifications: 15-lb. medium hardness, magenta underfelt, stapled to #88, factory pre-filed, no chemical hardeners or additives, and hornbeam moldings.

HM10-15-Approximate overall length Bass: 2.52"(64mm), Treble 2.85" (72mm) - 30 Bass Hammers
HM3715-15 - Approximate overall length Bass: 2.65"(67mm), Treble 2.95" (75mm) - 30 Bass Hammers
Custom Boring Available - Adds $65.00

If you select custom bore, you will receive instructions on how and where to send your Hammer Trials once your order has processed.