⬡ 1/4" Dr. HEX bit socket 37L 5mm (CL503605, CHANGLU TOOLS)
Comply with DIN 2936 standard manufacturing requirements
The sleeve is forged with 50BV30 chrome vanadium steel, chrome plated mirror knurled
The bit is made of S2 alloy steel, which is hardened as a whole, with high hardness, large torque and not easy to break