"drill jig" meaning in English

{
  "forms": [
    {
      "form": "drill jigs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "drill jig (plural drill jigs)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A type of jig that expedites repetitive hole center location on multiple interchangeable parts by acting as a template to guide the twist drill into the precise location of each intended hole center."
      ],
      "id": "en-drill_jig-en-noun-TaW3nwiP",
      "links": [
        [
          "jig",
          "jig"
        ],
        [
          "twist drill",
          "twist drill"
        ]
      ],
      "wikipedia": [
        "Jig (tool)#Drill jig"
      ]
    }
  ],
  "sounds": [
    {
      "enpr": "drĭlʹ jĭg'"
    }
  ],
  "word": "drill jig"
}

{
  "forms": [
    {
      "form": "drill jigs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "drill jig (plural drill jigs)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "A type of jig that expedites repetitive hole center location on multiple interchangeable parts by acting as a template to guide the twist drill into the precise location of each intended hole center."
      ],
      "links": [
        [
          "jig",
          "jig"
        ],
        [
          "twist drill",
          "twist drill"
        ]
      ],
      "wikipedia": [
        "Jig (tool)#Drill jig"
      ]
    }
  ],
  "sounds": [
    {
      "enpr": "drĭlʹ jĭg'"
    }
  ],
  "word": "drill jig"
}