基本信息
This grade 0 granite right angle ruler is a professional precision measuring tool designed for verticality detection, workpiece scribing and machine tool calibration. Made of natural Jinan black granite, it solves the pain points of traditional cast iron right angle rulers such as easy rusting, wear and rapid loss of accuracy. It is widely used in precision machining, sheet metal detection, mold manufacturing and other scenarios, providing reliable verticality reference for workpiece processing and detection work.