Back-spotface

{
  "id": "MLC-T-IND-000383",
  "term": "Back-spotface",
  "field": "Industrial and trades",
  "definition": "To machine a flat, circular surface around a hole on the blind side of a workpiece, or the side opposite the tool entry. This operation provides a clean, perpendicular bearing surface for a fastener head or washer. Specialized back-spotfacing tools are designed with expandable cutters to perform this task.",
  "subject": "Machining",
  "references": [
    "Spotface (Wikipedia)"
  ],
  "translations": {
    "de": "Rückseiten-Senken",
    "es": "refrentado posterior",
    "fr": "contre-surfacer"
  },
  "url": "https://mlchart.com/terminology/industrial/back-spotface/"
}