Tool holder having a clamping hole

摘要

A tool holder includes a base body (3) having a through hole (35), and a tubular clamp (5) rotatable between first and second positions. The tubular clamp (5) has a plurality of axially extending split parts (52) which extend through the through hole (35) an which define a clamping hole (51) to clamp a cutter (1). The split parts (52) are resilient to move inward or outward. A plurality of push elements (61) are formed on the base body (3) to push the split parts (52) inward when the tubular clamp (5) is in the first position. The split parts (52) are released when moving away from the push elements (61) in the second position of the tubular clamp (5).