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Grinding Wheels
Series 57 Tool Post Grinder 3"- 6" Internal Spindle Inserts

Grinding Wheels | Dumore Series 57 Tool Post Grinder 3"- 6" Internal Spindle Inserts

Dumore offers a range of grinding wheels, spindles and spindle inserts for the Series 57 tool post grinder to meet the majority of grinding applications.

Each grinding wheel has a "Use Code" designating the intended use:

1 = General-purpose. For steels up to Rockwell C45 hardness
2 = For cast iron, brass and other non-ferrous materials, including Sulzer Metco 445, 447, and 18C plasma spray coatings
3 = For stainless steels, Rockwell C45-C59 hardness steels, and all stainless steel based plasma spray coatings
4 = For steels of Rockwell C60 hardness and higher


Grinding wheels for the Series 57 tool post grinder internal spindle inserts are made from aluminum oxide.

The 3 3/8" Internal Spindle Insert (423-0008), 4 3/8" Internal Spindle Insert" (423-0010), 5 3/8" Internal Spindle Insert" (423-0012) and 6 3/8" Internal Spindle Insert" (423-0013) each handle 1/8" bore diameter standard grinding wheels up to 1" wheel diameter, 1/4" wheel thickness. Their maximum rated speed is 25,000 rpm (3 3/8" Internal Spindle Insert), 15,000 rpm (4 3/8", 5 3/8" and 6 3/8" Internal Spindle Inserts).

See additional spindles and spindle inserts for Series 57 tool post grinders.