Patent ID: 7690121

Claim:
A punch tool comprising: a housing having a lower portion, an upper portion, and a region between the upper portion and the lower portion for receiving a material to be punched, the lower portion and the upper portion moveably positionable relative to each other; a punch and a die both at least partially disposed in the housing; a lower ramp positioned between the punch and the lower portion of the housing and rotatable relative thereto about an axis of rotation, the lower ramp engageable with the punch upon rotation of the lower ramp; and an upper ramp positioned between the upper portion of the housing and the punch and rotatable relative thereto, the upper ramp engageable with the lower ramp, wherein rotation of the upper ramp results in rotation of the lower ramp and wherein rotation of the lower ramp results in movement of the punch within the housing in a direction substantially parallel to the axis of rotation, engaging the die.