ลูกบล็อกลม 42 mm SATA 1" 34830https://www.satatools.com/en/Product/show/34830.htmlMADE IN TaiwanSpecification(mm)42Net Weight (kg) 0.873Warranty Terms Lifetime warranty, pneumatic tools warranty terms, please see 'Introduction'Introduction◆ Made of high-quality Cr-Mo steel through cold forging..