MerlinTheWhite t1_j0xswrp wrote on December 20, 2022 at 5:05 AM

Reply to comment by rdmille in I made a honeycomb firewood rack by richriggins

Not plated, just mill scale. You might be looking at the flux on the metal which kind of looks like burned off zinc .

MerlinTheWhite t1_ir50i6h wrote on October 5, 2022 at 11:54 AM

Reply to comment by drummerene in Can i use 3 in 1 brand all temp fluid to lubricate drill bits when drilling (steel?) hinges? by drummerene

Oh it's silicone? Silicone lubricant is not good for drilling at all. It might work before the bulk solvent evaporates but yeah find something else.

Also you are using titanium nitride coated Cobalt steel drill bits, you 100% do not need any cutting fluid for this small job. And just like a knife, drill bits can be easily sharpened and reused.