Types Of Punch And Angle. The drive punch has a flat face instead of a point. In coining the dies were angularly cut to the set angle of the bend.
Single punch refers to one leg with punched holes shown in images. The drive punch has a flat face instead of a point. Besides there are r lower die acute angle lower die and hemming flattening die.
The width of its face defines this type of punch for example 1 8 in or 1 4 in.
Double punch refers to both legs having holes. The width of its face defines this type of punch for example 1 8 in or 1 4 in. It has a work lip with an angle of 12º for dies of rectangular shape and something more 15º or 16º for rounds and a radius of approximately 1 mm. For driving out damaged rivets bolts and pins that are bound up in holes you should use the drive punch.
