[Material] Screwdriver bit socket is made of high quality S2 alloy steel material, durable and long service life, with hardness up to 58‑60
[Star Screwdriver Bit Socket] This is standard star screwdriver bit with 140mm / 5.5in long and 6mm / 0.2in diameter, high accuracy, not easy to slip during operation
[Blue treatment of surface] With blue treatment of surface and one‑piece forged shape workmanship, rust‑proof and durable
[Inner wall buckle design] With a humanized inner wall buckle design, anti‑skid, which can make sure the connecting
[Application] Standard workmanship, star screwdriver bit socket is suitable for using on tools such as wrenches and hand tool