Jiacheng Tools

Specialized in HSS Drill Bits Since 2011 - Your Trusted Tool Manufacturer from Danyang, Jiangsu.

[Jiacheng Tools @JiachengTools]

Your drill bit didn't "just break."

There are 3 totally different reasons a bit chips or snaps instead of wearing down — and only one of them is actually a material problem.

🧵 in the article 👇
https://t.co/SlAMzIp4iW

[Jiacheng Tools @JiachengTools]

Full Article Post Tomorrow on Our Website, Why Drill Bits Fail Series👇:
https://t.co/WGzVY1siM1

[Jiacheng Tools @JiachengTools]

“Harder” doesn’t always mean “better.”

For HSS drill bits, the goal is not maximum hardness.

The goal is the right balance between hardness and toughness.

Read more in our latest article.

#HSSDrillBits #M35 #M2 #Drilling #CuttingTools #Metalworking #ToolManufacturer #Quality

[Jiacheng Tools @JiachengTools]

Full article: https://t.co/cGN8vmgnkd

[Jiacheng Tools @JiachengTools]

“Both are M35 cobalt drills. Why does one last longer?”

Because drill bits don’t fail on paper. They fail during drilling.

Tool life depends on more than material grade:
✔ Material quality
✔ Heat treatment
✔ Grinding geometry
✔ Speed & feed
✔ Cooling & chip evacuation

[Jiacheng Tools @JiachengTools]

When something feels off at the drill, most operators guess. Here's a better way.

A 5-step chip diagnostic that takes less than a minute.

No extra instruments. No downtime. The chips are already there — you just need to know what to look for.

#HSSdrillbits #JiachengTools

[Jiacheng Tools @JiachengTools]

https://t.co/SlAMzIp4iW

[Jiacheng Tools @JiachengTools]

Same drill bit. Same size. Same weight.

Left: HSS-Co M35 cobalt (amber color).
Right: HSS M2 (bright finish).
Both 11mm. Both 73 grams.

If weight told you anything about quality, these two would be identical. They're not.

Full article link in comments 👇

[Jiacheng Tools @JiachengTools]

Your chips are telling you the temperature. Are you listening?

One blue chip? Might be a spike. Consistent blue chips? That's a problem.

👉 Full chip diagnosis guide: https://t.co/OJEhccZuJl

[Jiacheng Tools @JiachengTools]

Spot weld removal with a standard twist drill is a mistake. 🚫

Available in 6mm / 8mm / 10mm. Full ground. Self-centering.

DM or visit the link to inquire.
🔗 https://t.co/5htWVyytNq

#SpotWeld #AutomotiveTools #DrillBits #BodyRepair #JiachengTools

[Jiacheng Tools @JiachengTools]

Broken bolt? Drill in reverse. 🔩

Our HSS Left Hand Drill Bits cut counter-clockwise — so while you're drilling in, you're also applying loosening torque. Many broken fasteners back themselves out before you finish the hole.

🔗 https://t.co/m7Rrw7Ss39

[Jiacheng Tools @JiachengTools]

Not all chips are created equal — and what's normal depends entirely on what you're drilling.

Here's the quick reference👇
https://t.co/OJEhccYWTN

Know your material. Know your chips. Save your drills.

[Jiacheng Tools @JiachengTools]

Chips are the health report of your drilling operation. They tell you whether your parameters are right, whether your drill is still sharp — before any of that shows up in the hole.

Full breakdown👇
https://t.co/OJEhccZuJl

#HSSdrillbits #MetalDrilling #DrillBits #JiachengTools

[Jiacheng Tools @JiachengTools]

The first order is always fine.

That's not the hard part.

The hard part is the fifth order. The twelfth. The one that arrives six months later — and still cuts the same way.

✅ A reliable supply.

Jiacheng Tools — built for the long order, not just the first.

[Jiacheng Tools @JiachengTools]

🌙 Eid al-Adha Mubarak from Jiacheng Tools!

On this sacred occasion, we extend our warmest wishes to our global clients, partners, and friends. May this festival of sacrifice bring peace, prosperity, and success to you and your loved ones.

#EidMubarak #EidAlAdha #JiachengTools

[Jiacheng Tools @JiachengTools]

M35 cobalt drill bits priced at M2 levels.

The raw material alone costs 10–20% more. Someone is cutting corners somewhere — and it's usually the cobalt.

A label isn't a spectrometer. 🧪

#DrillBits #M35 #HSS #CuttingTools #Manufacturing

[Jiacheng Tools @JiachengTools]

Two drill bits. Same steel grade. One lasts, one fails early.

The grade is the ceiling. The manufacturing process — heat treatment, geometry, grinding — determines whether you get anywhere near it.

Why good steel is only the beginning 👇
https://t.co/H0Ks5RXhrR

[Jiacheng Tools @JiachengTools]

When tungsten prices surged, many manufacturers moved toward lower-tungsten, higher-molybdenum systems.

Now tungsten is softening again — while molybdenum prices are rising.

In manufacturing, risk is often not removed, only transferred.

[Jiacheng Tools @JiachengTools]

Most supplier problems aren't about the product.

They're about communication, delays, and "not my department."

We fix that.

We reduce your trouble — before you even know it exists. 🎯

[Jiacheng Tools @JiachengTools]

Good steel is important.
But it’s not enough.
Drill bit quality comes from the whole process —
heat treatment, grinding, geometry, inspection, and even packaging.

Because what you really need is not just a product.
You need fewer problems.