. Grade: SUS201,SUS304,SUS316,A2-70,A2-80,A4-80,4.8 6.8 8.8 10.9 12.9

2. Size: all kinds of

3. Standard: ISO

4. Certification: ISO9001, 

Selling 9.8-36mm annular cutter for rail drilling made in China 
 It can be used for complex material of drilling jobs with high efficiency. Selection of high quality high cobalt steel, geometric modeling improved the cutting edges are high wear resistance, reduce the cutting resistance, improve chip removal performance.
Besides the commonly used right Angle type handle, equipped with a variety of handle type matching for kinds of drilling machines. We also provide various types, specifications of the drill bit according to customer needs to provide.