[
    {
        "id": 2000,
        "number": 5,
        "name": "ball 1/16",
        "type": "ballmill",
        "shaft_diam": 0.0625,
        "shaft_len": 1,
        "flute_diam": 0.0625,
        "flute_len": 2,
        "taper_tip": 0,
        "metric": false
    }, {
        "id": 2001,
        "number": 6,
        "name": "ball 1/8",
        "type": "ballmill",
        "shaft_diam": 0.125,
        "shaft_len": 1,
        "flute_diam": 0.125,
        "flute_len": 2,
        "taper_tip": 0,
        "metric": false
    }, {
        "id": 2002,
        "number": 4,
        "name": "ball 1/4",
        "type": "ballmill",
        "shaft_diam": 0.25,
        "shaft_len": 1,
        "flute_diam": 0.25,
        "flute_len": 2,
        "taper_tip": 0,
        "metric": false
    }, {
        "id": 1000,
        "number": 3,
        "type": "endmill",
        "name": "end 1/16",
        "metric": false,
        "shaft_diam": 0.0625,
        "shaft_len": 1,
        "flute_diam": 0.0625,
        "flute_len": 1.5,
        "taper_tip": 0
    }, {
        "id": 1001,
        "number": 2,
        "type": "endmill",
        "name": "end 1/8",
        "metric": false,
        "shaft_diam": 0.125,
        "shaft_len": 1,
        "flute_diam": 0.125,
        "flute_len": 1.5,
        "taper_tip": 0
    }, {
        "id": 1002,
        "number": 1,
        "type": "endmill",
        "name": "end 1/4",
        "metric": false,
        "shaft_diam": 0.25,
        "shaft_len": 1,
        "flute_diam": 0.25,
        "flute_len": 2,
        "taper_tip": 0
    }
]
