Technical Services


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Renner USA now offers comprehensive hammer services at our new Arizona plant. All Renner hammers can be custom bored to your specifications with the hammer tails properly radiused. To improve side clearance and to reduce weight Renner USA can precisely taper each hammer. This taper, extending the whole length of the hammer from the crown to the tail, recreates the configuration found on fine American grands from the classic era. For the ultimate in "out of the box" convenience your hammers can also be pre-filed and pre-voiced.

Renner USA will hang any of our grand hammer sets on any of our grand shanks. Our hammer hanging services are available to technicians in two levels of precision. Factory Level Placement: the hammers are hung to a uniform and fixed distance on the shank. This is the procedure used by most factories and is adequate for many situations. Custom Level Placement: If you wish to preserve the original placement of the hammers, we will duplicate your original samples to determine the original strike point. Our custom level placement can be ordered to achieve this higher standard of accuracy.

Additional Services:

Pre-Voicing
Pre-Filing
Full Side Tapering

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Custom Hammer Boring

Technician on Demand