BB Screw Torx Head Size:M2.5x6 ap (mm) represents cutting amount

ap (mm) represents cutting amount (Q)

but note that the feed speed also needs to be adjusted proportionally

Quenching and Hardening

please pay attention to the strength and drilling angle to prevent damage to the drill bit model

Exclusive milling cutter for high hardness high speed cutting applications

BB Screw Torx Head Size:M2.5x6 ap (mm) represents cutting amountBB Screw A: 1021 steel AA: SCM435, higher durability, 12. 9 standard. The head diameter of M5 is about 7mm BB Torx Keys Click on the image and select Quenching and Hardening, Not Easy to Slip Wire Through multiple quenching, the hardness of the screws is enhanced, effectively avoiding the problem of screws being prone to slipping Stable and More Secure Locking Force Increase the depth of the thread teeth, ensure uniform and stable torque, and enhance