BoschTI5IM 5-Piece Assorted Set Titanium Nitride Coated Metal Drill Bits with Included Case Impact Tough with Impact-Rated Hex Shank Ideal for Heavy-Gauge Carbon Steels, Light Gauge Metal, Hardwood

So I have a drill bit kit that I've had for years made by Hitachi. It has drill bits ranging from 1/16in up to 1/4in. Over time I've broken several bits which I have tried to replace with OEM parts when available. When I wasn't able to find a Hitachi brand 1/4in, I opted for this Bosch 1/4-Inch Impact Tough Titanium Drill Bit for about $5 shipped to my door. The other day I needed to drill 4 holes 5/8in in diameter into my welding table which is made of 1/2in thick plate steel. I wanted to drill pilot holes with something smaller than the 5/8 so I grabbed this new Bosch 1/4in drill bit. I thought surely at the first pull of the trigger on my impact driver I would strip out this 1/4in drill bit from its hex shank. Let me tell you - I drilled all four pilot holes with this one 1/4in drill bit through 1/2in thick plate steel with no problems whatsoever. Sure I went slow .. 300-400 rpm maybe? And I stopped every couple minute or two to brush away the chips and give a squirt of oil to cool and lubricate. And when I was finished, I had four nice clean holes and the drill bit looked good as new. That just never happens to me! I highly recommend the Bosch TI2143IM 1/4-Inch Impact Tough Titanium Drill Bit. I'm going to buy at least one of each size to replenish all of the drill bits in my Hitachi kit. Good day to all!

Works great

Exceptional !!!

Better than most Chinese Bits, but they still break rather easily. They will drill some hard materials, better than most Chinese bits, but I feel there are better out there. Not sure if I'd buy again or not

Can there really be much of a difference between drill bits?Hell yeah!I had them all, the unbranded, the Ryobi packs, the Home Depot or Costco sale sets, the what have-yous.And now that I am over 60, all my gear being about 20 to 30 years old and slowly withering away, and having taken on a major new project recently, I thought "let's try to make this as easy as possible".So I got myself a Bosch 18V tool set along with Bosch drills, bits, saw blades, wheels etc.These drill bits are fantastic!They are wicked sharp, super precise and super easy to work with.The non-skate tip, makes it super easy to get started precisely where you want to be (instead of "eh, it's close enough"), the shank fits super tight into the impact driver, and the two together make drilling holes as effortless as carving through soft butter. Very impressed!

Seems well made .. i bought this to replace a bit in my set that I snapped mounting a built in microwave. No complaints.. I will update if anything changes upon ongoing use.

Perfect! Gets the job done. Sharp!

Broke after three uses, dulled pretty easily