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Additional supplies for the lens blocking process, including replacement block centers and view support insert assemblies.

Replacement Block Centers
Replacement block centers are for all Coburn standard blocks and are made with high-grade steel, hardened and plated.
Pin Block Replacement Centers - Standard Size 100
Item: 77-6000
Pin Block Replacement Centers - Larger Size 100 Pa
Item: 77-6100


View Support Insert Assemblies
View support insert assemblies come in two different blocking ring sizes for your convenience.
50mm Blocking Ring
Item: 161882
60mm Blocking Ring
Item: 161872