Micron Instrument Co. Supplies Punch Grinding Attachments of Range 2-25mm. Micron Instrument Co. Manufactures Disk Type Couplings, Spiral Couplings, Encoder Couplings, FCM, Dial Gauge Calibrators, Monochromatic Light, Dial Stand, and Floating Carriage Micrometers used in engineering industries. The Punch Grinding Attachments of Range 2-25mm enables to grind small punches on a surface grinder. The Punch Grinding Attachments are most suitable for press shops where slight modifications to available punches can be carried out in the shop.