Cutting blade holder assembly

A cutting blade holder assembly comprising, a first subassembly mounted on a machine frame provided by supporting the holder assembly, said first subassembly including a first claw coupled having an axial shaft and a second subassembly spaced a predetermined distance apart from and releasably coupled to said first subassembly, said second subassembly including a second claw coupler having a shaft coaxial with the first claw coupler shaft, a cutting tool hub rotatably mounted on said second claw coupler shaft, and a circular cutting tool mounted on said hub for rotation together therewith, said first claw coupler being rotatably mounted on said first subassembly for interengagement with said second claw coupler for releasably coupling said second subassembly to said first subassembly, said first subassembly including a lever mounted to said first claw coupler for manual rotation thereof into and out of engagement with said second claw coupler, said holder assembly further comprising an adjustable stop means on said first subassembly which bears against said second subassembly for adjusting the distance between said subassemblies, and said first assembly further including resilient means for resiliently coupling said subassemblies together at a spacing permitted by said stop means.