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🔧 Drill Like a Pro, Last Like a Legend!
This 8.5mm M35 cobalt steel drill bit features a hardened 5% cobalt alloy with titanium coating, delivering exceptional heat resistance and durability. Its 135° point angle and dual-flute spiral design ensure precise, chatter-free drilling through hard metals such as stainless steel and cast iron, making it an essential tool for professionals demanding longevity and performance.
| ASIN | B08NYSZ571 |
| Best Sellers Rank | #1,487 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 1,311 Reviews |
| Cutting Angle String | 135 Degrees |
| Cutting Diameter | 8.5 Millimeters |
| Finish Type | Titanium |
| Finish Types | Titanium |
| Item Dimensions | 4.61 x 0.33 x 0.33 inches |
| Item Weight | 0.04 Kilograms |
| Manufacturer | LingGan |
| Material | M35 Cobalt High Speed Steel |
| Material Type | M35 Cobalt High Speed Steel |
| Minimum Bore Diameter | 8.5 Millimeters |
| Model | 2020-11-21-15-75 |
| Number of Flutes | 2 |
| Part Number | 2020-11-21-15-75 |
| Point Style | Taper Point |
| Set Name | No Set |
| Shank Type | Straight |
| Surface Recommendation | Stainless Steel,Cast Iron,Steel,Metals |
| Tool Flute Type | Spiral |
| Unit Count | 1 Count |
A**A
Great Drill Bits!
Cobalt drill bit worked great with tapping fluid. Used for boring 6061-T6 forged aluminum. Made sure to re-apply tapping fluid when feeling slight friction before continuing. Also used it for tapping 5mm threads in the same 4.2mm drilled hole as recommended for best clearance. Thought I wanted a hex shank but the round shank is better for less wobble and precise concentric drilling since i used a hand held drill. Worked like a charm!
T**R
As described
Functional and proper metric sizes. Used in plastics and metal.
K**D
Nice quality bit
The bit worked well for drilling through thin steel legs for a laundry sink. I used tap magic oil and the bit went through pretty well. You just have to remember a slower speed is better when drilling through metal, too fast and the bit can't dig into the metal and you will just burn the bit out.
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.
H**G
Gets the job done!
These are great qualities and very precise made. I have been using them for my DIY projects. And it couldn’t be done without these. Price is also very reasonable
M**N
Wasn’t expecting much…I’m impressed.
Does what it’s supposed to. Drills holes. In metal. I was worried about durability and using all the bits they sent, nope. 1 bit did all the holes I needed and still feels sharp. I had a lot of pressure behind it and it did well.
J**J
Awful
They suck I used them for only a day and broke off.
H**E
Far exceeded expectation
Needed to drill 1/4” stainless. 10mm drill bit went through it like butter. Caution: go easy with the pressure and drill speed. This bit is sharp and will grab if not careful. Highly recommend.
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
2 days ago