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Starrett 257A Full-sized Surface Gage, 9″/225mm Spindle Length, 2-7/8 x 2-3/8″ / 72 x 60mm Base Size

Starrett 257B Full-sized Surface Gage, 9″ & 12″/225mm & 300mm Spindle Length, 2-7/8 x 2-3/8″ / 72 x 60mm Base Size

Starrett 257C Full-sized Surface Gage, 12″/300mm Spindle Length, 3-1/2 x 3-3/16″ / 90 x 80mm Base Size

Starrett 56B Small Surface Gage, 4″ & 7″/100mm & 175mm Spindle Length, 2 x 1-1/2″ / 50 x 38mm Base Size

Starrett 56C Small Surface Gage, 7″/175mm Spindle Length, 2 x 1-1/2″ / 50 x 38mm Base Size

Starrett 57A Full-sized Surface Gage, 9″/225mm Spindle Length, 3 x 2-9/16″ / 75 x 65mm Base Size

Starrett 57D Full-sized Surface Gage, 12″ & 18″/300 & 450mm Spindle Length, 3-3/4 x 3-3/8″ / 95 x 85mm Base Size