Spindle Inserts | Series 57 Tool Post Grinders

Dumore Spindle Inserts are for use with Insert Spindle (802-0024) offering versatility for external and internal grinding on Series 57 Tool Post Grinders. Select from the following Spindle Insert options. Insert Spindle required - sold separately (see below).

External or internal grinding, depending on which Spindle Insert is used. Spindle Inserts required - sold separately. 42,500 rpm maximum speed.
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External grinding with 3/8" bore diameter grinding wheels, up to 5" wheel diameter, 1/2" wheel thickness. 15,000 rpm maximum speed.
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Internal grinding to 2 1/4" depth, 5/8" diameter, with 1/4" bore diameter grinding wheels up to 1 1/2" wheel diameter, 5/8" wheel thickness. 32,500 rpm maximum speed.
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Internal grinding to 3 3/8" depth, 5/8" diameter, with 1/8" bore diameter grinding wheels up to 1" wheel diameter, 1/4" wheel thickness. 25,000 rpm maximum speed.
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Internal grinding to 4 3/8" depth, 5/8" diameter, with 1/8" bore diameter grinding wheels up to 1" wheel diameter, 1/4" wheel thickness. 15,000 rpm maximum speed.
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Internal grinding to 5 3/8" depth, 5/8" diameter, with 1/8" bore diameter grinding wheels up to 1" wheel diameter, 1/4" wheel thickness. 15,000 rpm maximum speed.
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Internal grinding to 6 3/8" depth, 5/8" diameter, with 1/8" bore diameter grinding wheels up to 1" wheel diameter, 1/4" wheel thickness. 15,000 rpm maximum speed.
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Internal grinding using 1/8" or 1/4" diameter shank mounted points up to 3/4" diameter.. 42,500 rpm maximum speed.
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