








⚡ Drill Like a Pro, Last Like a Legend
The Cobalt Drill Bit 43/64 inch is a high-performance M35 high-speed steel tool with 5% cobalt, heat-treated to a hardness of HRC 67. Designed for precision and durability, it features a 135° pilot point tip and tapered web helix for efficient chip removal. Perfect for drilling tough metals including stainless steel, cast iron, and alloys, it offers 5 times the lifespan of standard bits, making it essential for professional-grade metalworking.






A**R
will order again
excellent drill bit great price if you can wait and order on line instead of running to the big box store you'll save a bunch and end up with an excellent drill bit
J**N
the fact that it is a quality product for wood working.
I received the drill bit in less than a week. It was packaged very well to insure no damage to the bit. Using it on oak it drilled very easily and extremely clean. I am very please with the product and the seller.
D**S
good bit
right size and was good and sharp
S**N
Worst drill bit in all of my experience
Would zero stars if I could. Drill bit advertised for stainless steel, but i barely drilled one hole and both drill bits broke apart. Amazed at how badly they performed. I haven't seen something this bad in a long time.
D**A
it worked well
this is a very good Drill bet
I**N
Excellent drill bet still going strong
This cobalt drill bit is great value for money last a long time.Good quality fit multiple drills.And the functionality was outstanding
'**'
Durable but not high quality
I've ordered 3 of these bits over the last few weeks. The first two (both >1/2") bits seemed decent but we're not exactly on size. The 3rd one arrived dirty with swarf and the shank was completely chewwed up like someone let it slip in a chuck. I'm not sure if Amazon or the seller is responsible but I'm not pleased.
A**Z
Super sharp
It cut metal really easy !
Trustpilot
3 weeks ago
2 months ago