1、Made of premium aluminum alloy material, has high hardness, wear resistance and great durability. 2、You can cut the 12mm diameter aluminum hex rod to your preferred length according to your needs. 3、The outside is hex, and the inside is round, enables the advantages of both round shaft and hex shaft. 4、Can be used with other robot parts with matching hex holes, which can effectively prevent the parts from rotating and slipping on the hex axes, so that the force of the parts is more even, and the friction and transmission or driving force efficiency are increased. 5、The aluminum hex shaft is made of light aluminum alloy, and M4 screw holes are added at both ends of the shaft, so that it can be better fixed with other parts, and it has many of the same functions and advantages as the stainless steel hex shaft. 6、Used as a drive shaft accessory for intelligent robots, and can also be applied to lathe equipment and engineering equipment. Item Type: Hex Rod Material: Aluminium Alloy Function: Used as a drive shaft accessory for intelligent robots, and also suitable for lathe equipment and engineering equipment. 10 x Hex Rod