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Publication of JPS4867873ApublicationCriticalpatent/JPS4867873A/ja
B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
B23G1/00—Thread cutting; Automatic machines specially designed therefor
B23G1/44—Equipment or accessories specially designed for machines or devices for thread cutting
B23G1/46—Equipment or accessories specially designed for machines or devices for thread cutting for holding the threading tools
B23G1/465—Equipment or accessories specially designed for machines or devices for thread cutting for holding the threading tools comprising arrangements for reversing the rotation of the tool