Product type: v-, v into v-shaped iron-block, cast iron v-rack, steel v-racks, magnetic v-racks, granite v-rack, stand-up iron three iron, Fe, v-shaped, as well as five. According to the JB/T8047-95 standard, cast as HT250, steel material using high quality tool steel.

Product features: for precision measurement of shaft parts, dashes, positioning and clamping of mechanical processing, can also be used for fitter stereo dash and mechanical parts of parallelism, perpendicularity measurement and testing