Metric 230 Pieces Titanium Twist Drill Bit Set, 135° Tip High Speed Steel, Size from 1mm up to 10mm, Ideal Drilling in Wood/Cast Iron/Aluminum Alloy/Plastic/Fiberglass, with Hard Storage

Nice throw away drill bits ...seem to last and have not run through drill doctor yet....see how that does in the end All in all pretty good value

Such a useful set. I used it all around the house for all types of materials. It performed flawlessly for a fraction of the cost compared to what sells in Home Depot. The bit stays sharp after multiple uses.

Thought they might be just cheap garbage and would burn up quick. To my surprise these things keep grinding. At the price, it would not have mattered. But, now, I won't have to buy any drill bits for years. I am using them on soft metals and hard/soft woods.

Si muy buen producto

These drill bits are not HSS, High Speed Steel does not bend, it breaks, these bits are very soft, they bend easily. In addition the two 116 degree flanks are not the same length, they are in-correctly ground. This is a substandard product that is wrongly advertised.

I do a lot of DIY automotive modifications. So I need it to get metric drills because the standard drills were either too thick or too thin and I needed something in the middle with drilling a hole. These did the trick very happy with this purchase.

Muy buena calidad

As described. The only drill bit I have used so far is a 1.5 mm bit. Worked fine drilling plastic. The only Issue I had was that I started to open up the case upside down > had to clean up many drill bits back into their individual compartments. I think I was short 1 - 1 mm drill bit out of 32 > did not worry about it.