these sell fast and will not be listed long..1940's logan 10" lathe tool holder t-nut.size is .980 top. 1.425 bottom.1/2 thick.1/4 deep slot..2" long...9/16-18 thread.please check your lathe sizes befour ordering.if you need another thread hole size's or a blank hole, please look at my other listings or message me.all parts are sprayed with sealer for storage and shipping.we have a 3 to 4 working days handling time when our work load is high,we do not work weekends and ship all orders first class mail only,All items listed are cut on USA 0pen tolerance/dimensions on sizes and flat degrees and are cut under compound slot sizes for a good slide in fit