8 USA 
2 Singapore 
1 Netherlands 
1 China 
1 Germany 
Hand Tap Factory Alloy Steel M3 M6 Metal Cutting Tools - China
price: contact company for price
Hand Tap Factory Alloy Steel M3-M6 Metal Cutting Tools
Carbon steel (Mainly refers to gcr15 in China) taps can be a good choice for certain applications, particularly for hand tapping, threads cleaning, and repairing, but they may not be ideal for high-volume cutting or tapping on hard materials .
They tend to dull more quickly than high-speed steel (HSS) taps Pros of Carbon Steel Taps:
Lower Cost: Carbon steel taps are cheaper.
Good for Hand Tapping: They are suitable for manual threading, especially when cutting with soft materials like Aluminium, Brass, Plastic etc .
Effective for threads cleaning and repairing: They can be useful for rethreading damaged threads or removing burrs.
Technical Data
Standard DIN 352
Material Gcr15
Surface Bright/Black Finished
Flute Type Straight
Cutting Direction Right
Thread Metric
Thread Angle 60°
HRC 58-61
Both Ends Cusp In addition to hand taps, we also offer highly efficient machine taps.
Company Contact:
- Posted By: Hangzhou GSR-Threads Tools Co.,Ltd
- Phone: 0571-82688363
- Address: No. 381, Tianjiali, Tianfeng Village, Yiqiao Town, Xiaoshan, Hangzhou , Zhejiang , China
- Email:
- Website: https://www.gsrthreads.com/
Published date: January 7, 2026
- Business Description: Ms.
Yanli Zhang, the current founder of the company, was one of the suppliers of Mr.
Hartmut Blombach, another shareholder of the company, the owner of GSR in Germany.
After three days and nights of negotiation on one promotion order about taps and dies, the two sides have established a deep friendship.
And in the subsequent cooperation, they have created a deep trust between each other.
Our Products:
- Din5157 Bsp Hand Tap Set 2pcs Hss G
- Adjustable Tap Wrench Zinc Casted For Hand Tapping
- Hexagon Die Nut Din 382 Hss Metric
- Die Guide For External Thread Cutting
- Wire Thread Insert
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