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●Select a flat type (OPF~) or an inclined type (OPA~) in accordance with a work angle.  Refer to Selecting method on the page 402. ●Installation dimensions of the unit (case-holding length)  For installation dimension of the unit, refer to the following figures for processing. ●Set the punch unit as the punch becomes perpendicular to the dice surface. ●Keep the dice face flat.  In case the dice surface is not flat enough, it is hard to make a proper hole. 16 or larger M8 tap depth 20 or larger Keep the dice surface flat The dice surface is not flat enough Perpendicular to the dice surface At an angle to the dice surface ◎Precautions (Regarding die design) Breaking Punch Punch Unit 400