Patent ID: 7344113

Claim:
A tool holder comprising: a base body having a through hole; a tubular clamp rotatable between first and second positions, said tubular clamp including a plurality of axially extending split parts which extend through said through hole and which are spaced apart angularly to define a clamping hole that is adapted to receive a cutter, said split parts being resilient to move inward or outward; and a plurality of push elements formed on said base body, said push elements pushing said split parts inward when said tubular clamp is rotated to said first position, and releasing said split parts when said tubular clamp is rotated to said second position; wherein said base body includes a bottom wall, said through hole extending through said bottom wall, said tubular clamp having a pair of said split parts, said push elements including a pair of push blocks that project upward from a top side of said bottom wall on two opposite sides of said through hole to push said split parts, respectively, when said tubular clamp is rotated to said first position.