1.  Material: 42 CrMoA and 40Crmo 2. CNC machine to make it more accuracy 3. Full controlled Capacity for whole process of heat treatment 4. All QC data was recorded and kept for about 3 years, to make it tracking easily. 5. ISO 9001 Quality Assurance and CE certification

6. Special process to ensure the hardness of the whole chisel, which is well proportioned. (Integral, quenching, segmented tempering)

7. Generally paint spraying two or three layers, instead of just ignoring this process directly or just spraying one layer.