Ulwakhiwo oluphezulu lwentsimbi enobunzima obuchasene nokugqwetheka.Ukunyamezela (I-Flat kunye ne-Square): I- Machined Finish - ngaphakathi kwe-.002" nge-6".Ground Ground - ngaphakathi .0005″ nge 6″ kwindawo yokusebenza.Zonke iziphelo ngoomatshini ezikwere kunye parallel ngaphakathi .002″ nge 6″.