CENTRE GAUGE

This is centre gauge. Centre gauges are used in lathe work for checking the angles when grinding the profiles of single point screw cutting tool bits. These gauges are most commonly used when hand grinding threading tool bits on a bench grinder although they may be used with tool & cutter grinders. When the tool bit has been ground to the correct angle, they are then used to set the tool perpendicular to the workpiece. Centre gauges are used to check the angle of a threading tool and set the tool perpendicular to the workpiece.

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