Irwin Tools 3016021 Single Cobalt Alloy Steel High-Speed Steel Drill Bit, 21/64" x 4-5/8"

Worked well for drilling old bed rail angle iron that had dulled several normal drill bits.

I have used before. Good quality. Would recommend. Thanks

Great drill, affordable price.

I needed this to get some anchors into steel studs. It easily went through within 10 seconds. I’ve only used it on steel 3 times, but it still seems pretty sharp and capable

It works good . Sharp and drill Straight.

Arrived on time.

Nice to have a backup in the shop when the old ones get dull. The Irwin brand has never let me down.

I broke my previous drill bit and bought this as a replacement for my drill bit set. It is the correct size and seems to drill holes fine with no issues. Drilling holes is what I bought it for so I'm happy!

Arrived on time and as ordered

Excellent drill bit

Using a large floor-standing drill press running at it's near-slowest speed and adding drops of oil often (often!) to keep the friction heat down, we easily drilled 16 holes with this single bit (no pilot holes, we just went full size right off the bat) and I'd dare say for sure that the 16th hole went as quickly and easily as the 1st hole. Wayyyyy easier than I'd ever experienced with all my cheaper drill bits I've bought over the years.

Good value, works great, arrived on time!

Broke it on the second hole...it was not even drilling straight, i then finished my work with a cheap drill bit from any hardware store and over 50 holes without an issue...bad experience with this expensive product, I’m very disappointed and i don’t recommend it to no one