🔩 Premium 8 Piece Aluminum Silver Deming Set for Versatile Applications Review

I read another review from someone who also used it to drill bowling balls. I've drilled about half a dozen so far and the 7/8 bit dulled and snapped off very quickly, what surprised me? This was the third ball I've drilled and the second time I've used this drill. I've used all but 9/16 at the moment and don't seem to have any major issues with the rest. You silly, maybe I went a little too far? But I think any drill that is sold as a cobalt metal drill should work with a plastic bowling ball.

Packaging was very good, each bit was individually wrapped in plastic. All together in a shiny, lockable box. I needed to drill a 1" diameter hole in 1/4" steel. I started with a 1/4" drill bit from another set and gradually worked my way up to 1/2" 9/16 and I put the chisel in the drill press, started drilling, all my chuck falls out of the spindle, surprised I put the chuck mandrel back into the spindle, I start drilling, the chuck falls out again, but whole in the beginning stop the drilling

I paid $39 for this set. Long story short, if you plan to do a lot, or want to drill something harder than mild steel, or need good quality cuts. If you only drill holes occasionally and don't care too much about how they look, then this set is a good choice of cobalt drill bits in mechanical quality from the USA. So I have some basis to compare these port freight quality drill bits, but at this price point What you would really expect What you get: Bits are not very good Grinding defects on…