McMaster-Carr logo
    Filter by
    System of Measurement
    For Tap Size
    Industrial Info Snippet
    Face Type
    Square Shank Size
    Total Indicated Runout (TIR) Accuracy
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    For Holding
    Shank Size
    Specifications Met
    Shank Diameter
    External Thread Size
    Industrial Info Snippet
    Internal Thread Size
    Industrial Info Snippet
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    8 Products

    ER Tap Collets

    Image of Product. Front orientation. Tap Collets. ER Tap Collets.
    Image of Attribute. Front orientation. Contains MultipleImages. ER Tap Collets.

    Hold square-shank taps in ER collet chucks and tap holders to create internal threads in workpieces. To hold taps tightly in place, these collets have spring slots that grip the round part of the shank and a square opening in the base that mates with the square end. They meet DIN and ISO dimensional standards.
    These collets hold inch and metric taps that have shanks that meet ANSI standards. They will not work with taps that have shanks sized to ISO, DIN, or JIS standards.
    52100 Alloy Steel—52100 alloy steel collets are made from the same tough material used to make bearings. They’re more wear-resistant than basic spring steel collets.
    Chrome-Moly Steel—Chrome-moly steel collets are more wear-resistant than 52100 alloy steel collets. They hold their shape better over time, which helps them keep a strong grip on taps. They also have lower runout, so your taps last up to 20% longer and create more accurate threads. Often used for high-volume production runs, they hold up to high-speed and high-force tapping in any material.
    For Tap
    Size
    Inch
    Metric
    For Shank
    Dia.
    For Square
    Shank Size
    Collet
    Size
    Max. Body
    Dia.
    Overall
    Lg.
    Specs. Met
    Each
    ER-16 Collet
     
    52100 Alloy Steel—0.0004" Total Indicated Runout (TIR) Accuracy
    1/2"
    M12 to M12.50.367"0.275"23/64"0.67"1.08"DIN 6499-A, ISO 15488 Form A9211N19000000
     
    ER-20 Collet
     
    52100 Alloy Steel—0.0004" Total Indicated Runout (TIR) Accuracy
    1/2"
    M12 to M12.50.367"0.275"23/64"0.83"1.24"DIN 6499-A, ISO 15488 Form A9211N2900000
     
    Chrome-Moly Steel—0.0002" Total Indicated Runout (TIR) Accuracy
    1/2"
    M12 to M12.50.367"0.275"23/64"0.83"1.22"DIN 6499-A, ISO 15488 Form A9211N75000000
     
    ER-25 Collet
     
    52100 Alloy Steel—0.0004" Total Indicated Runout (TIR) Accuracy
    1/2"
    M12 to M12.50.367"0.275"23/64"1.02"1.34"DIN 6499-A, ISO 15488 Form A9211N3900000
     
    Chrome-Moly Steel—0.0002" Total Indicated Runout (TIR) Accuracy
    1/2"
    M12 to M12.50.367"0.275"23/64"1.02"1.38"DIN 6499-A, ISO 15488 Form A9211N84000000
     
    ER-32 Collet
     
    52100 Alloy Steel—0.0004" Total Indicated Runout (TIR) Accuracy
    1/2"
    M12 to M12.50.367"0.275"23/64"1.3"1.57"DIN 6499-A, ISO 15488 Form A9211N5400000
     
    Chrome-Moly Steel—0.0002" Total Indicated Runout (TIR) Accuracy
    1/2"
    M12 to M12.50.367"0.275"23/64"1.3"1.57"DIN 6499-A, ISO 15488 Form A9211N95000000
     

    5C Lathe Collets

    Image of Product. Front orientation. Contains Inset. Lathe Collets. 5C Lathe Collets, Round Face.

    Round Face

    These collets tightly grip workpieces when installed into a 5C collet chuck or holder. They provide a stronger hold on small workpieces than a standard lathe chuck.
    Collet
    Size
    Total Indicated Runout
    (TIR) Accuracy
    Workpiece Dia.
    Tolerance
    Body
    Dia.
    Overall
    Lg.
    Internal Thread
    Size
    External Thread
    Size
    Material
    Each
    Round Face
    23/64"0.0008"-0.004" to 0"1 1/4"3.27"1.041"-241.238"-20Steel
    3223A432000000
     
    back to top