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Carbide Drill Bits
C2/K20 Tungsten Carbide
Made from medium grain C2/K20 tungsten carbide, the drill bit has good toughness, high hardness (HRA89) and wear resistance.
Spiral and Sharp Flutes
Spiral chip space design for fast and clean chip removal. Sharp cutting edge provides smooth cutting and no glitches.
Easy to Use
Used on machining centers, CNC lathes. Not recommended to be used with a hand drill. Hand drill is easy to shake, with poor stability, which makes drill bit easy to twist off.
Features
- Carbide tool offers long tool life and faster cutting speeds than other substrates.
- It has higher hardness but is more brittle.
- With good milling and cutting performance, can ensure high work efficiency.
Wide Applications
Widely used for drilling non-ferrous metal, cast iron, stainless steel, aluminum, copper, alloy steel, plastic, wood, etc.. Designed with the base substrate without any additional coatings, suitable for wide ranges of applications.
Suitable lubricant is conducive to cutting or cooling, making cutting easier, improving smoothness and dimensional accuracy.
Customer
Reviewed in the United States on February 2, 2025
These are ok. I ordered 3 sets and they all broke nearly immediately. Had to return and get replacements to finish the job. The new ones cut steel well and were true to size. Functioned fine in the hand drill and drill press we used. Just plan on ordering spares or returning broken ones for your project.
Robert Clodfelter
Reviewed in the United States on February 13, 2025
Used one of these solid carbide bits in a drill press to drill a little over 100 holes in a 3/8” 304 stainless steel plate. Ran at low speed with heavy feed pressure and lots of tapping fluid. Still cutting well when I finished.
C. M. W.
Reviewed in the United States on February 11, 2025
Awful. DO NOT BUY! Both bits broke in half after just a minute or two of use.
Linda Larrymore
Reviewed in the United States on January 7, 2025
This was the first time I ordered drill bits online.I expected long bits, but these are only 1.5 in long. Since I have a small drill too,I keep it. Just be aware of the length!
Steve Mc
Reviewed in the United States on September 27, 2024
I had a hardened bolt shear off in one of my pieces of home lawn care equipment. Couldn't back it out, so I tried drilling it with one of my conventional bits.... didn't even scratch it. Bought these, hoping they would be just long enough to reach the broken thread. It cut like butter. After 1(?) minute, I had the hole I needed to insert a screw extractor. I'm a happy camper. And I expect they will receive additional use, as this problem has occurred a couple of time previously. Very pleased with price and performance.
Teren
Reviewed in Canada on September 2, 2024
Worked well but use extreme caution as they are brittle. Not recommended for hand drill, unless you're really careful and experienced. Must remain dead steady and even pressure, carbides are like glass but do the job. Used these to enlarge hardened sun gear oil holes, first ran a carbide tree burr in the valley, then used these to open existing holes. Worked well enough.
Customer
Reviewed in Canada on July 11, 2024
worked where all other failed, but it's one hole per bit...
Cee Shell
Reviewed in the United States on December 4, 2024
Went thru 1095 steel no problem. Both bits broke on powder coated steel using lubricant and drill press
johnnie d johnson lll
Reviewed in the United States on November 20, 2024
This worked perfectly when other bits failed against this hardened steel.
Dennis w
Reviewed in the United States on November 18, 2024
The harder they are they are more brittle so it's best to use a drill press. If it leans one way or another there's a good chance it will break. They do cut very well.
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