Attached table EN HT360 series user manual Copyright©Qingdao Hantek Electronics Co.,LTD 34 depth Indentation When the diameter 0.35mm 0.35mm 0.35mm -- 0.35mm hardness is Indentation 10μm 10μm 7 μm -- 10 μm 800HV depth Type DC Type D+15 for groove or concave surface Type C for light and thin parts and hardene d surface. Type G for heavy and rough castings and forgings Type E for material with extremely high hardness type for hole or Applicable Scope of impact cylinder; device Type DL for slot or hole