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⚡ Drill Like a Boss: Precision, Power & Longevity in Every Spin!
This 2-piece set of 5mm M35 cobalt steel drill bits features a hardened 5% cobalt alloy with titanium coating, delivering exceptional heat resistance and durability. Designed with a 135° point angle and 2-flute spiral for efficient chip removal, these bits excel at drilling hard metals like stainless steel and cast iron with precision and minimal wear, making them a top choice for professional-grade metalworking.
| ASIN | B08P6V4376 |
| Best Sellers Rank | #1,961 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Metalworking & Multipurpose Drill Sets |
| Brand | LingGan |
| Brand Name | LingGan |
| Customer Reviews | 4.4 out of 5 stars 1,438 Reviews |
| Cutting Angle String | 135 degrees |
| Cutting Diameter | 5 millimeters |
| Finish Type | Titanium |
| Finish Types | Titanium |
| Item Dimensions | 3.39 x 0.2 x 0.2 inches |
| Item Weight | 0.02 kg |
| Manufacturer | LingGan |
| Material | M35 Cobalt High Speed Steel |
| Material Type | M35 Cobalt High Speed Steel |
| Minimum Bore Diameter | 5 millimeters |
| Model | 20-20-11-27-12-55 |
| Number of Flutes | 2 |
| Number of Packs | 2 |
| Number of Pieces | 2 |
| Part Number | 20-20-11-27-12-55 |
| Point Style | Taper Point |
| Set Name | 2-Piece Set |
| Shank Type | Straight |
| Surface Recommendation | Stainless Steel,Cast Iron,Steel,Metals |
| Tool Flute Type | Spiral |
| Unit Count | 1 Count |
A**O
Decent quality steel drill bit
Needed to make a tight 10mm hole in a collar I was machining out of aluminum. This bit worked pretty well. I only used it for the final cut though, so just removing a few thousandths of material. Worked out well though and no damage to the cutting edge or flutes. My hole diameter came out to within .002 inches of 10mm. If you need a metric drill bit for a tight hole, this would work.
M**A
Very good drill did the work very well highly recommend
Very good drill , was able to drill 155 hole in 1/8 thick stainless steel with one bit and no lubricant . I have reprder different size due to good quailty for another project,
R**N
Good 12 mm drill bit
Believe it or not it's a good quality drill I don't know if it's Chinese or not probably is but seems to be good quality served its purpose
P**.
Clean Polish may fool?
They look nicely made , very clean polish and very sharp tips. Yet to test if they can cut or not, so lets update soon. One thing is very bad is the toy box they come in, not even worth the container. They scatter in the bag they come in. Luckily else they'd be in another state.
G**N
The Power Of Cobalt Compels You
These actually cut into my 30 year old exhaust bolts that I've been trying to drill out for weeks. Gotta keep em oiled and go slow and they will literally shred heat tempered metal. If you see smoke you are not doing it right. Slow down, you should see long coils of metal coming down from the bit, not tiny flakes or smoke, if you see those add oil and slow down. Cobalt is a brittle metal, don't push too hard, be very careful when it finally breaks through so you don't snap them off. If you push too hard, you'll snap them off. The slower you go the better, heat is not your friend! If the bit gets super hot it will get dull so keep it oiled, keep it slow, and take breaks if it feels like the bit is getting too hot.
J**E
Drill bit
Worked like a champ. Did everything I needed it to do
M**D
NOT cobalt. False advertising
Absolute garbage. There is no way that these are cobalt. They are labeled HSS (high speed steel) CO on the bit! I didn't even drill one hole and the drill bit was smoking. I will be returning these for a refund
B**.
Not bad for the price
Not bad for the price.
H**S
Buen producto
Buen producto. Recomendado.
D**R
Seems high quality
very sharp & feels quality bit.
H**S
Buen producto
Buen producto
B**T
nice to have
very sharp
G**G
excelente calidad
Muy recomendable
Trustpilot
1 month ago
1 month ago