Review on 🔩 DEWALT Industrial Cobalt Pilot Bit DWA1240 by James Lighting

Bought for some work on a single axle trailer that was converted from a metal grid deck to a sheathing. To attach the skin we had to drill a few holes in the 1/4" steel L-beams and we had to do a little prep to get the job done. We took them and they did a great job. We did worked on this project for several days.and not a single problem and all the bits stayed sharp and working after the job was done.I've used them on several other projects since then without breaking or dulling.they certainly met my expectations, and if someone ends up failing, i will buy this set again.