This is far off the bottle trail but this is general chat . I bought a set of forstner drill bits in a yard sale the other day . They were in a wood box but looked like they had been laying out in the damp for days and have rusted pretty badly . My question is , Have any of you used CLR on rusted metal and if so was it in any way effective ? And who sells CLR should I want to try it ? I have not seen it in any of the stores in my area .