Patent ID: 8192116

Claim:
A device for retaining milling tool holders, comprising: a. a sleeve, said sleeve having a passage therethrough, said sleeve including a tapered inner surface, a neck and an opening, said neck having an inner diameter, said sleeve having an exterior, said tapered inner surface, said neck and said opening defining said passage; b. a threaded member, said threaded member having a head and a threaded section, said threaded section having an outer diameter, said outer diameter of said threaded section equivalent to said inner diameter of said neck, said head having an outer diameter, said outer diameter of said head greater than said outer diameter of said threaded section; and c. a retaining member constructed to fit about said threaded section of said threaded member in said passage of said sleeve at the opposite side of said neck from said head, said retaining member having an outer diameter greater than said neck inner diameter.