OL-RZ does not require the use of cutting oil for thread tapping without oil or iron chips (if oil has a longer lifespan), which can avoid the possibility of deterioration of the workpiece steel due to cutting oil. It can also eliminate the process of cleaning the workpiece. OL-RZ is made of particle steel and treated with TICN on the surface to improve its heat resistance, wear resistance, and durability

·Screw tapping accuracy grade: YAMAWA G grade
·Screw tapping material: HSS-P
·Number of teeth on the cutting edge: OL-RZ-4 teeth

·Surface treatment: TiCN coating
·Applicable to the material being cut:
Cold rolled steel plates, carbon steel, copper, aluminum alloys, etc. with tensile strength below 500N/mm2