Toolholder assembly with flexible canister

A toolholder assembly, comprising:

• a toolholder having a rearwardly facing toolholder shank and an axial rearward end with an internal bore intersecting the axial rearward end, the toolholder shank having an outer surface and at least one locking aperture that extends from the outer surface to the internal bore;
• a base member having a bore configured for receiving the toolholder shank;
• a lock rod with an axial forward end and an axial rearward end;
• and
• at least one locking member in communication with the axial forward end of the lock rod and movably positioned at least partially in the at least one locking passageway and/or the at least one locking aperture;
• and
• a flexible canister adapted to be received in the bore of the base member, the flexible canister having an outer surface and a canister bore that extends longitudinally into the flexible canister, the flexible canister having at least one locking passageway that extends from the outer surface of the flexible canister to the canister bore, the at least one locking passageway being in communication with the at least one locking aperture of the toolholder shank when the toolholder assembly is assembled,
• wherein the flexible canister includes at least one flexible feature that reduces stiffness of the flexible canister.