DEVICE 03
VIEW DEVICE
Hammer Drilling
Purpose-built equipment designed for accurate, repeatable hammer preparation during piano action rebuilding.
DEVICE SPECIFICATIONS
PURPOSE
Adjustable
APPLICATION
Hammer Installation
FUNCTION
Piano Action
CONTROL
Voicing
CONFIGURATION
Alignment
MOVEMENT
Laser Guided
DEVELOPED by
Gene Korolev, RPT

PRECISE DRILLING. CONSISTENT ALIGNMENT.
Piano hammers must be prepared with careful attention to drilling angle, position, and alignment. Small variations across the hammer set can affect action geometry and ultimately influence the consistency of touch and tone. The Piano Hammer Drilling Machine was developed to bring greater accuracy and repeatability to hammer preparation. By controlling the position and drilling angle of each hammer, the device helps create consistent geometry across the complete hammer set before installation and final regulation.
WHY IT MATTERS
A piano action contains components that must work together with extremely close relationships. Consistent hammer preparation provides a more accurate foundation for installation, alignment, regulation, and voicing, helping the rebuilt action perform as a unified system.