The inserts I purchased are quite interesting. They are made of marine grade brass, the internal thread size is 10-32, O.A.L. is .375 in., main O.D. is .252 in. and they are flanged at the front end. The flange O.D. is .3125 in.. The O.D. is knurled for grippind within a hole and they work on an expansion method.

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Date: 11/01/10 - 7:14 PM
Added by: dauntless-n-miami
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