40-Pc M35 Cobalt Twist Drill Bit Set 3/64 to 3/32 for Hard Metal | Fully Ground 5% HSS-CO With 118° Point; 65-67 HRC Superior Heat Resistance; Straight Shank; Cuts Cast Iron, Plastics & Wood

High quality-m reasonably priced

Bought this set 2 months ago and have only used ONE bit. It worked well.

Just inexpensive usable Chinese drill bits. They are within .001" of stated sizes and will cut soft copper and mild steel unlike some of the cheaper bits on Amazon. The only reason I didn't give 5 stars is because I haven't used them long enough or hard enough to make that judgement.

Great product and great price!

so far so good , seem to be good drill bits.

I'v used the smaller diameter drill bits repeatedly for drilling approx 50 holes sequentially through 23/32 thick plywood, and each bit lasts about 15-20 drill holes before it breaks off (in the wood), probably due to the heat of repeated drilling. Maybe if I slow down the drilling so they cool they will last longer.

Definitely good value in comparison to most other drill bits available in this size I had no problem drilling about 15 holes in mild steel 1/4 inch thick using a drill press However it did seem as though they lost part of their edge after about 8 or 10 Personally when dealing with drill bits this small I really don’t expect them to last too long simply because I’m always snapping them or loosing them no matter which brand I use

I bought these drillbits to replace those that broke in a cobalt bit set. So far they seem to be holding up and do not break as easily as some of the other Chinese junk does

Very good quality, very fast shipping, fully recommended!

Very good drill bits for the price, have tried the 3/32 into 90mm PVC Pipe with a pine stiffener inside, like a hot knife into butter, 16 holes in all. Then used that bit into the head of a large hex bolt, started to penetrate OK, had to be careful using it with a battery drill, then tried that bit into 5mm aluminium , ok result. I've purchased cheap drills before and they would hardly mark the aluminium.

Used these occasionally over time Work well

Good cheap drill bit suitable for use does not stay sharp for extended use but for the price who cares

Some okay