ลูกบล็อกลม 37 mm SATA 1" 34825https://www.satatools.com/en/Product/show/34825.htmlMADE IN TaiwanSpecification(mm)37Net Weight (kg) 0.75Warranty Terms Lifetime warranty, pneumatic tools warranty terms, please see 'Introduction'Introduction◆ Made of high-quality Cr-Mo steel through cold for..