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    41 Products

    Class Z Plug Gauges

    Image of Product. Front orientation. Plug Gauges. Class Z Plug Gauges.
    Also known as pin gauges, these Class Z plug gauges help you measure hole size and depth, check hole location and distance, and set micrometers. All come with a certificate of accuracy traceable to NIST that states they've passed a test for accuracy.
    If a go gauge can enter the hole and a no-go gauge is unable to enter, the hole is within tolerance.
    Go Gauges—Go gauges check the minimum hole diameter.
    No-Go Gauges—No-go gauges check the maximum hole diameter.
    Go Gauges
    No-Go Gauges
    Choose a Plug Gauge
    Size, mm
    Lg.
    Surface Smoothness,
    RMS, μin
    Hardness
    Material
    Specs. Met
    Plug Gauge Size
    Tolerance, mm
    Each
    Plug Gauge Size
    Tolerance, mm
    Each
    Class Z Gauge
    0.2200 to 1.51002"8Rockwell C60Tool SteelASME B89.1.50 to 0.00252281A100000-0.0025 to 02281A9000000
    1.5200 to 12.71002"8Rockwell C60Tool SteelASME B89.1.50 to 0.00252281A20000-0.0025 to 02281A110000
    12.7200 to 15.31002"8Rockwell C60Tool SteelASME B89.1.50 to 0.00252281A30000-0.0025 to 02281A120000
    15.3200 to 17.81002"8Rockwell C60Tool SteelASME B89.1.50 to 0.00252281A400000-0.0025 to 02281A1300000
    17.8200 to 20.37002"8Rockwell C60Tool SteelASME B89.1.50 to 0.00252281A500000-0.0025 to 02281A1400000
    20.3800 to 22.05002"8Rockwell C60Tool SteelASME B89.1.50 to 0.00252281A600000-0.0025 to 02281A1500000
    22.0600 to 23.73002"8Rockwell C60Tool SteelASME B89.1.50 to 0.00252281A700000-0.0025 to 02281A1600000
    23.7400 to 25.41002"8Rockwell C60Tool SteelASME B89.1.50 to 0.00252281A800000-0.0025 to 02281A1700000
     

    Class X Plug Gauges

    Image of Product. Front orientation. Plug Gauges. Class X Plug Gauges.
    Also known as pin gauges, these Class X plug gauges are used for precision go/no-go measuring of hole sizes and depths, checking hole location and distance, and setting micrometers. All come with an accuracy certificate traceable to NIST that states they've passed a test for accuracy.
    If a go gauge can enter the hole and a no-go gauge is unable to enter, the hole is within tolerance.
    Go Gauges—Go gauges check the minimum hole diameter.
    No-Go Gauges—No-go gauges check the maximum hole diameter.
    Go Gauges
    No-Go Gauges
    Choose a Plug Gauge
    Size, mm
    Lg.
    Surface Smoothness,
    RMS, μin
    Hardness
    Material
    Specs. Met
    Plug Gauge Size
    Tolerance, mm
    Each
    Plug Gauge Size
    Tolerance, mm
    Each
    Class X Gauge
    0.101 to 0.3812"4Rockwell C60Tool SteelASME B89.1.50 to 0.0012301A1000000-0.001 to 02301A8000000
    0.763 to 1.9052"4Rockwell C60Tool SteelASME B89.1.50 to 0.0012301A300000-0.001 to 02301A1100000
    1.906 to 4.5722"4Rockwell C60Tool SteelASME B89.1.50 to 0.0012301A400000-0.001 to 02301A1200000
    4.573 to 7.1372"4Rockwell C60Tool SteelASME B89.1.50 to 0.0012301A1600000-0.001 to 02301A1700000
    7.138 to 10.3122"4Rockwell C60Tool SteelASME B89.1.50 to 0.0012301A1800000-0.001 to 02301A1900000
     

    Go/No-Go Hex Plug Gauges with Handle

    Image of Product. Front orientation. Plug Gauges. Go/No-Go Hex Plug Gauges with Handle.
    Confirm hex drives on socket head screws are within tolerance. A go and no-go gauge in one, these gauges are handy for testing hole size and depth in machining and manufacturing. Their handle gives you a good grip to insert each end into the hole you’re measuring. If the go gauge enters the hole and the no-go gauge is unable to enter, the hole is within tolerance. Gauges are made of tool steel, the most common material for plug gauges, because it’s strong, hard, and resistant to wear.
    All come with an accuracy certificate traceable to NIST to certify their sizes are within tolerance. They also meet ASME B18.3, the same dimensional standards for hex drive fasteners.
    Plug Gauge Size
    Tolerance, mm
    Plug Gauge
    Size, mm
    Go
    No-Go
    Hardness
    Material
    End Color
    Specs.
    Met
    Features
    Each
    1.50 to 0.003-0.003 to 0Rockwell C60Tool SteelGreen, RedASME B18.3Handle8178N350000000
    20 to 0.003-0.003 to 0Rockwell C60Tool SteelGreen, RedASME B18.3Handle8178N36000000
    2.50 to 0.003-0.003 to 0Rockwell C60Tool SteelGreen, RedASME B18.3Handle8178N37000000
    30 to 0.003-0.003 to 0Rockwell C60Tool SteelGreen, RedASME B18.3Handle8178N38000000
    40 to 0.003-0.003 to 0Rockwell C60Tool SteelGreen, RedASME B18.3Handle8178N39000000
    50 to 0.003-0.003 to 0Rockwell C60Tool SteelGreen, RedASME B18.3Handle8178N41000000
    60 to 0.003-0.003 to 0Rockwell C60Tool SteelGreen, RedASME B18.3Handle8178N42000000
    80 to 0.003-0.003 to 0Rockwell C60Tool SteelGreen, RedASME B18.3Handle8178N43000000
    100 to 0.003-0.003 to 0Rockwell C60Tool SteelGreen, RedASME B18.3Handle8178N44000000
    120 to 0.003-0.003 to 0Rockwell C60Tool SteelGreen, RedASME B18.3Handle8178N45000000
    140 to 0.003-0.003 to 0Rockwell C60Tool SteelGreen, RedASME B18.3Handle8178N46000000
    170 to 0.003-0.003 to 0Rockwell C60Tool SteelGreen, RedASME B18.3Handle8178N47000000
    190 to 0.003-0.003 to 0Rockwell C60Tool SteelGreen, RedASME B18.3Handle8178N48000000
    220 to 0.003-0.003 to 0Rockwell C60Tool SteelGreen, RedASME B18.3Handle8178N49000000
    240 to 0.003-0.003 to 0Rockwell C60Tool SteelGreen, RedASME B18.3Handle8178N51000000
     
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