3 NOS NORTON INDIA TRIANGULAR OIL STONES - COARSE, MEDIUM, FINE

Unused. Each measures 4 x 7/16 x 5/16". Used by mechanics and tool and die makers to impart the correct edges in their work, but could have a wide variety of sharpening applications. Made in USA. 

• FF-134 Fine India
  
• MF-134 MEDIUM INDIA
• CF-134 COARSE INDIA