Aleric Center Drill Bits Set - High Speed Steel Center Drill Bit Countersink Tools for Lathe Metalworking, 7 pcs 60-Degree Angle Centering Drill in Size 1.0 1.5 2.0 2.5 3.0 4.0 5.0

I purchase several things on Amazon and was giving pretty in-depth reviews. From this point on, here's the new agenda…. if it works as advertised, is well made, meets or exceeds the description, is a value, and arrives in a fair amount of time, it will get a "star rating" equal to what my expectations were/are. If it doesn't meet these criteria, then I will most definitely and descriptively tell the short comings of the products and you as a consumer will not have to go through the trouble of buying the product without some background knowledge. If the sell pulls that item and relists under another description, I will put the exact same review on the seller's feedback page. Sellers have done this a couple of times in the past, and I was true to my word then as well as now. DR

If you want to drill accurately with a drill press, you need these. Good price, good quality. I am not a machinest so I cant comment on commercial use, but they dont walk and drill true.

They worked just fine for my application!

Good bits for beginners

These center drills do not work at all. They are made improperly with no cutting edge and will not penetrate into metal. They WILL break if they are used in any kind of metal. Very poor product and may be considered unsafe for use. They are not worthy of even 1 star and Amazon should remove them from their listings.

Very good for my fingerboard countersinks!

Ok for the price

I used the larger center drill on mild steel. On the third hole the tip broke off.