Interstate Punch Formers

• For precision grinding applications, such as punches and electrodes of EDM on surface grinding machines and universal tool machines.
• Adjustable function for oval punch grinding.
• Punch former has a crank wheel for dressing grinding wheels to various cross sections of flat or curved shapes.
• V-Block adjusting function for different outside diameters. Center is within 0.19″

Specifications for 34-847-4 & 34-848-2

• Center Height: 3.14″
• Travel of V-Block: 1″
• Slider Transverse Travel: +-0.49″
• No. of divisions: 24
• Divisions (Ea.): 15 deg. +- 5 sec.
• Max. Wheel Dia.: 7.8″
• Max. Dress Radius (Convex): 1.88″
• Max. Dress Radius (Concave): 3.93″

34-847-4

• StandardPunch former
• V-Block holding
• Clamping dia.: 0.15″ – 1.18″

34-848-2

• Punchformer with 3 jaw chuck.
• Clamping dia.: 0.07″ – 2.7″

34-849-0

• Sine plate for punch forms.
• Distance between rolls: 50 mm
• 55 RC hardened and ground.
• Accuracy: 0.0002″