Machinist/toolmakers cutting compound from a professional
This DIY beeswax-based metal cutting compound makes expensive cutting fluids go much further with less mess. The beeswax alone is an effective for metal working alone but adding additional ingredients one can adjust the compound for your own specific needs. Here I mix some up using various tapping fluid ingredients and thinning to a grease like consistency using light thread cutting oil so that it can be brushed on to the work or cutting tool. This is an old-time professional trick for aiding close tolerances using the best machines and tooling the ingredients are not cheap here.