Fishtail Gauge / Screw Cutting Gauge
Fishtail Gauge / Screw Cutting Gauges are used for checking angles when grinding the profiles of single point screw cutting tool bits in lathe work, commonly known as a center gauge or fishtail gauge.
Fishtail Gauges are mostly used when hand grinding threading tool bits on a bench grinder, once the correct angle has been achieved they may be used to set the tool perpendicular to the workpiece. These are supplied as Metric with a 60 Degree angle.
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