Drill Hog 切削膏，用於切削、鑽孔、攻牙、螺紋加工，2盎司

I was drilling through some thick steel plate and this paste kept the bit cool the whole time, no smoking or burning smell like I used to get. The 2 oz bottle is small but a little goes a long way.

The pop-up spout lets me put a dab exactly where I need it instead of smearing paste everywhere. Tapped eight holes in steel plate and the tap cut noticeably smoother than with oil.

I was halfway through tapping a stubborn piece of steel when I finally tried this paste, and the difference was immediate. The 2 oz bottle is small enough to keep in my drill case, and a little dab goes a long way on the bit.