Patent ID: 6912755

Claim:
A clamping device of a rotating tool comprising: a first clamping plate including: a snap groove disposed at the center of said first clamping plate and having a bored hole disposed at a center of said snap groove; and a plurality of first fixing grooves disposed on a circumference of said first clamping plate; and a second clamping plate including: a snap protrusion disposed at the center of said second clamping plate, corresponding to said snap groove, and having a bored hole disposed at a center of said snap protrusion; and a plurality of fixing protrusions disposed on a circumference of said second clamping plate and corresponding to said first fixing grooves; wherein said first clamping plate includes a plurality of union protrusions integrally fixed thereon and the second clamping plate includes a plurality of second fixing grooves corresponding to said union protrusions.