South Bend 9 - 3-jaw chuck jaw biaser for grinding ID

Use this plate to clamp your 3-jaw chuck jaws inwards for ID grinding using a Dremel tool in your toolpost.
1h 54m
1× print file
0.30 mm
0.60 mm
54.00 g
4
28
0
455
updated December 6, 2022

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This plate will allow you to bias your 3-jaw chuck jaws inwards to hold them in the proper biased position for ID grinding.  I was able to true my chuck ID using a Dremel on my AXA-style toolpost and achieved 0.001-0.002" of runout verified with a gauge pin and dial indicator.

 

 

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