Callier-Scollard Violins
Craig Scollard

50 E. Green St. Suite 142
Pasadena, CA 91105
(626) 795-2870

Mon, Tue, Wed 10:00-1:00.
Thu, Fri, Sat 2:00 to 5:00

Intercom Access Code, Press:
142 and then the CALL button:

Frog Tongue Repair | Minimal Intervention for Lasting Stability

While rehairing this bow, I discovered a fragile frog where the only thing holding the tongue together was the ring, wedge, and hair. The tongue had slight movement and clearly needed reinforcement. I wanted a solution that required minimal intervention yet would hold up over time; especially since I’ll likely be the one rehairing it again in the future. This quick but thoughtful repair ensures lasting stability without overworking the fragile area. 

  • Initial check: Assess the fit and clean up any small misalignments or irregularities.
  • Glue alignment: Glue the broken piece back in, using the ring as a guide for proper positioning.
  • Flat clamping: Use a flat piece of wood across the frog and ring to maintain precise alignment as the glue dries.
  • Next day prep: After drying, inspect the glue joint and flatten the surface as needed.
  • Fiber insert: Fit a piece of fiber reinforcement into the frog interior.
  • Mortise bend: Create a 90-degree bend so the fiber extends into the mortise for added support.
  • Glue fiber: Glue the bent fiber piece securely into the frog.
  • Clean surface: Once dry, trim and clean the surface for a tidy finish.
  • Final rehair: Fit a new block and complete the rehairing process.
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