HILTEX 10005 Jumbo Silver & Deming Drill Bit Set, 8 Piece, 1/2" Inch Shank Industrial Large Drill Bit Set 9/16” Drill Bit to 1" Drill Bit, Metal Drill Bits for Steel, Reduced Shank Drill Press Bits

Good large drill bits. Worked great for purpose I purchased them for. I used to drill bowling ball. If you purchase for this purpose use fairly slow speed. Do not drill a pilot hole I will repeat this do not use pilot hole. If you do they are very aggressive and will tear up ball. Drill press would help, but not necessary. Then clean up with Dremel type tool and sanding wheel, to bevel hole. Saved over cost of pro shop $40 for holes. Now I can drill balls for whole family. LOL

I banged out a bunch of 1/2" holes in the outriggers on my RV frame. They did a GREAT job. After much abuse, the bit I used has a slight nick on the corner of one cutting edge, but had I bought a brand name, I would have paid as much for one bit as for this whole set. Very pleased, and I will get years of use out of these.

The bits work well and cut through aluminum without an issue. My reason for rating these 4 stars is because the listing says they come with a "nice" case, but in reality I received a square piece of foam with places cut out for the bits. It looks like a piece that should fit INSIDE of a ncie case. For some this may not be an issue, but I have a lot of stuff in my garage and organization is of the utmost importance. If I do anything but sit them flat the bits fall out of the case. It makes storing the bits a little harder, but they will sufice.

I went to two local big box stores looking for traditional drill bits sizes up to 15/16”. I was surprised that I couldn’t find anything sized even close to what I was looking for. So I went to Amazon and found these Hiltex Silver & Deming bits. The package shipped quickly and when it arrived I was pleased to find that it came in nice wooden protective box. The box has a golden metal latch. I’ve never received drill bits secured in a nice box like that before, so I was kind of shocked when I opened the package. Inside, each bit was wrapped in its own heavy plastic sleeve and they sat on a black foam mat, each bit has its own little slot. Each slot is marked with the appropriate bit size. Based on the packaging, I think these bits will be easy to store and easy to find in the future. The bits worked just fine for the job I was doing, which was to drill larger holes through an aluminum door handle. Aluminum is not a huge test I know, but they seemed robust enough to do bigger jobs on heavier materials as well. So far I’m happy with my purchase.

Bought in November last year, just used for first time. Used for heavy duty drilling in a hand drill, drill bit hung up a couple of times and it bent the hell out of this. Very soft material for a drill bit, it took pieces of metal out of the drill. The shaft spun around in the chuck a bit and removed quiet a bit of metal from the shaft. Do NOT buy. Very bad quality. Too late for me to return.

it work well for me

These are great drill bits for the money. They aren’t the quality of expensive bits. But they work great for someone that doesn’t use them every day. I drilled 6- 9/16” holes in 1/2” steel plate turning them slowly with some lube and it performed better than I expected.

I was skeptical for the price but I’ve used them several times with cutting oil and they work great’