No More Dull Drills: WD-40 to the Rescue

WD-40 has become an indispensable part of my drilling routine. Before I start any drilling task, especially when working with harder materials or doing a lot of holes, I give my drill bits a quick spray. This simple step creates a thin layer of lubrication that significantly reduces friction and heat buildup. 1 I've noticed a remarkable difference – my bits stay cooler, cut more efficiently, and, most importantly, remain sharp for much longer. Without this "miracle in a can," I'm convinced I'd be constantly replacing burnt-out and dulled drill bits, costing me a small fortune over time. WD-40 isn't just for squeaky hinges; it's a vital tool that saves me time, frustration, and a significant amount of money on drill bit replacements.