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- Apr 30, 2015
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Usually, the backplate fit is not determined by the mounting bolts but instead, by a rim or shoulder that fits the plate to the chuck.
Therefore, the mounting bolt holes in the plate can be oversize or even slotted
Look for a pre-threaded blank backplate that fits your spindle then fit it to the chuck. Take another close look at your spindle so you know for sure what the thread is- 7 tpi sounds odd- could it actually be 8?
-Mark
PS good job on the wrench tool![Cool :cool: :cool:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Therefore, the mounting bolt holes in the plate can be oversize or even slotted
Look for a pre-threaded blank backplate that fits your spindle then fit it to the chuck. Take another close look at your spindle so you know for sure what the thread is- 7 tpi sounds odd- could it actually be 8?
-Mark
PS good job on the wrench tool
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