Overheard a contractor in line at the hardware store say he uses a dab of dish soap on his drill bits.

He claimed it keeps them cooler and cuts cleaner through metal. Anyone have experience with that trick for drilling steel?

3 comments

3 Comments

My old shop teacher swore by that trick.

Wait, dish soap? Not cutting oil?

Huh, never tried it. I'll have to give dish soap a shot.