The hardness of cr12mov tool steel can reach above HRC60.
Hardness is the heat treatment requirement, not a fixed value. There is a limit range. After the quenching temperature of 1010 °C, Cr12MoV is air-cooled and tempered at 200 °C. The hardness can be 58~60HRC, but the prerequisite is reliable material quality. Source, as well as a proven heat treatment technology.
Cr12MoV tool steel
Cold work dies steel, steel hardenability, quenching, and tempering hardness, wear resistance, strength is higher than Cr12. Various cold stamping dies and tools with complex shapes and heavy working conditions, such as punching die, trimming die, piping dies, steel plate deep drawing die, circular saw, standard tools, and gauges, thread rolling die, etc.

Quenching specification:
Ordinary quenching and tempering specifications:
Quenching temperature 1000~1050 °C, hardening or quenching, hardness
≥ 60HRC; tempering temperature 160~180°C, tempering time 2h, or
tempering temperature 325~375°C, tempering times 2~3 times.