Louver cutter

A louver cutter comprising

• a body having a pair of spaced arms,
• the lower arm defining a base and the upper arm overlying the base,
• a lower die pad,
• means for rotatably mounting said lower die pad on said base for rotation about a vertical axis,
• means for locking said lower die pad in any adjusted position,
• a lower die block,
• means for fastening said lower die block on said lower die pad such that the lower die pad has a portion projecting upwardly and spaced from the lower die block,
• a cylindrical piston slidable for vertical movement in said upper arm and selectively indexable in said upper arm,
• means for moving said piston toward and away from said lower die block,
• an upper die block,
• said upper die block on said piston comprising an opening therein into which said piston extends,
• said opening having a substantially closed bottom,
• the end of said piston abutting the bottom of said opening,
• and fastener means for holding said lower die block on said piston,
• a cutter blade,
• said cutter blade having planar angularly related contacting surfaces at a right angle to one another,
• said upper die block having angularly related surfaces engaging said surfaces of said blade,
• said upper die block having a portion thereof cut away to define an opening to expose a portion of said piston,
• said piston having angularly related surfaces complementary and coplanar to the angularly related surfaces of said die block engaging said angularly related surfaces of said blade through said opening in said upper die block,
• and fastener means for releasably holding said blade on said upper die block and, in turn, holding said die block against rotation with respect to said piston.