BE-394102 9PCS LONG BALL POINT HEX KEY 9件套公制特长球头内六角扳手

• Manufactured from 40Cr alloy steel,hardened through quenching heat treatment to achieve HRC 50-53 hardness.
• Surface finished with sandblasting and chrome plating.
• chamfered base for effortless nut insertion.
• 采用40Cr 材质制造，经淬火热处理，硬度可达HRC 50~53；
• 表面沙丁铬处理；
• 尾段倒角方便插入螺帽。

规格：1.5, 2, 2.5, 3, 4, 5, 6, 8, 10mm