8本入りコバルト M42 ジャンボ シルバー＆デミング ドリルビットセット 1-1/16～1-1/2インチ Drill Hog®

Drilled through 1/2" plate steel like it was nothing, and the M42 cobalt tips still look sharp after a dozen holes. Having the full range from 1-1/16" up to 1-1/2" in one case saved me a trip to the hardware store mid-project.

Bought these to open up some worn holes on my tractor's bucket pins and the cobalt tips cut through the hardened steel way easier than the cheap set I had before. Nice having all eight sizes in one case, though it's heavier than I expected.

Bored out a 1-1/4" hole through half-inch plate steel and the M42 cobalt cut like it was nothing, no chatter at all. The 8-piece range from 1-1/16" up to 1-1/2" covers pretty much everything I need. Only thing is they're heavy enough that my drill press needed a slow speed, but that's expected with