amoolo 1/4" Cobalt Drill Bit (10 Pcs), M35 HSS Metal Drill Bits Set for Hard Metal, Stainless Steel, Cast Iron Box of 10

Quality drill bits! I was installing a boat lift in my slip. Normal bits burned easily drilling thru galvanized steel. These were recommended to me. Only burned one.

I use 3/8” bits so much I go through them fast so now buying 5 pack. First bits I’ve gotten from Amazon and these are really good. Drilling in 1/4” thick 2” angle iron. So far good.

I tried 5 different Cobalt bits. Ordered from 3 different companies. They weren't sharp. Sent them back. Took a chance and ordered from a 4th company with good reviews for sharpness. A gain the bits were not sharp. Dent them back. Thought I would give it one more fifth try from this company. HURRAH !! Opened the package , took a bit out and tried it. IT DRILLED THE HOLE IN MILD STEEL ALMOST LIKE BUTTER. THEN DRILLED 2 MORE HOLES WITH THE SAME BIT. NO PROBLEMS DRILLED THEM EASILY. WOULD DEFINATELY RECOMEND THESE BITS. ARRIVED IN ONE DAY. VERY SATISFIED.

Just drill bits. Nothing special.

The Amoolo 1/4" Cobalt Drill Bits are sharp and cut through metal, wood, and plastic with ease. They don’t overheat quickly, and the precision is great. The value for a 10-pack is solid.However, I noticed they wear out faster than expected when drilling through harder metals. For light to medium-duty work, they’re excellent, but for heavy use, they might not last as long. Overall, a good buy for the price!

I understand some of the other negative reviews to a point, but most are nitpicking as heck. For the money you can’t beat this Drillmaster. Yes the adjustments are clunky but they work once set. For a DIY like myself a little extra time to change angles is no biggie.I am a bit surprised at the quality of materials used. It’s pretty solid. Once setup and adjusted the drill goes up and down with no issues what so ever.I’m at the age where my hands aren’t as steady nor is my eyesight what it once was. I’ve become pitiful when it comes to making straight holes by hand. This tool will keep me going a few more years for sure.

Wish I could have a complete set of these drill bits. They worked extremely well for me.

There not the best drill bits for drilling wood deck down to steel, they are only good for 2 to 3 holes