产品描述：
该款套筒旋头组是采用铬钒钢材质，表面全镀铬，表面光洁且具有一定的耐腐蚀性，有各种大小不同尺寸，共有20件。符合DIN标准。
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Used most often in the automotive and aerospace industries. The weight to strength ratio ensures the reliability and accessibility that is so important in this type of production environment. For insertion and removal of fasteners and fixings using 1/2"square drive tooling. Unique knurled body gives extra grip which is essential for a quick tool change when your hands are greasy/oily. Registered Design No. 2053516UK. Manufactured from chrome vanadium steel and are fully chrome plated with a mirror finish and aluminium free to ensure non sparking. All have ball retaining groove on each face of the square drive. 55mm overall length. 20mm bit length. Conforms to DIN standards.
