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    9 Products

    ER Coolant Control Collets

    Image of System. Side1 orientation. CrossSection view. Contains Annotated. Milling Machine Collets. ER Coolant Control Collets.
    Image of ProductInUse. Sealed Shown in Use. Front orientation. Milling Machine Collets. ER Coolant Control Collets, Sealed Coolant Delivery Collet.
    Image of Product. Sealed. Front orientation. Milling Machine Collets. ER Coolant Control Collets, Sealed Coolant Delivery Collet.

    Sealed

    Shown in Use

    Sealed

    Made with high-performance machining in mind—these collets not only grip your cutting tool but also direct coolant to the tool's cutting edge. They have coolant channels designed to work with through-spindle coolant (TSC) systems to clear chips and reduce heat from friction, resulting in clean cuts and long tool life. Place them directly into your ER collet holder, no need to fuss with special collet nuts, coolant rings, or repositioning hoses and nozzles with every setup change.
    You get the benefits of using an ER collet, too. Spring slots clamp evenly around the shank to minimize runout for accurate cuts. Keep in mind, these collets must form a tight seal around the tool shank for proper coolant delivery, so match the shank size to the collet size exactly for the best results.
    Sealed Coolant Delivery Collet—Sealed collets run coolant through the cutting tool, so they only work with tools that have coolant holes. Since the coolant runs through the tool, they’re a better choice for deep-hole drilling and high-speed machining than collets with angled ports. Steel seals are built into their body, so they withstand higher pressure and last longer than collets with rubber seals.
    Chrome-Moly Steel—Hardened chrome-moly steel collets are more wear-resistant than hardened 52100 alloy steel collets. They hold their shape better over time and have lower runout, even with frequent bit changes. Often used for high-volume production runs, they stand up to high-speed, high-force machining in any material. Their maximum coolant pressure is higher than 52100 alloy steel collets, so they’re a better choice for deep-hole drilling and turning operations in CNC Swiss lathes.
    Collet
    Size
    Grip Range
    Total Indicated Runout
    (TIR) Accuracy
    ID Tolerance
    Max. Coolant
    Pressure, psi
    Max. Body
    Dia.
    Overall
    Lg.
    Specs. Met
    Each
    ER-32—Sealed
     
    Hardened Chrome-Moly Steel
    21/64"0.308" to 0.328"0.0002"-0.0001" to 0.0001"2,9001.3"1.57"DIN 6499-B, ISO 15488 Form B3321A153000000
     

    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
    21/64"0.0008"-0.004" to 0"1 1/4"3.27"1.041"-241.238"-20Steel
    		3223A429000000
     

    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
    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
    7/16"
    		0.323"0.242"21/64"0.67"1.08"DIN 6499-A, ISO 15488 Form A9211N18000000
     
    ER-20 Collet
     
    52100 Alloy Steel—0.0004" Total Indicated Runout (TIR) Accuracy
    7/16"
    		0.323"0.242"21/64"0.83"1.24"DIN 6499-A, ISO 15488 Form A9211N2800000
     
    Chrome-Moly Steel—0.0002" Total Indicated Runout (TIR) Accuracy
    7/16"
    		0.323"0.242"21/64"0.83"1.22"DIN 6499-A, ISO 15488 Form A9211N74000000
     
    ER-25 Collet
     
    52100 Alloy Steel—0.0004" Total Indicated Runout (TIR) Accuracy
    7/16"
    		0.323"0.242"21/64"1.02"1.34"DIN 6499-A, ISO 15488 Form A9211N3800000
     
    Chrome-Moly Steel—0.0002" Total Indicated Runout (TIR) Accuracy
    7/16"
    		0.323"0.242"21/64"1.02"1.38"DIN 6499-A, ISO 15488 Form A9211N83000000
     
    ER-32 Collet
     
    52100 Alloy Steel—0.0004" Total Indicated Runout (TIR) Accuracy
    7/16"
    		0.323"0.242"21/64"1.3"1.57"DIN 6499-A, ISO 15488 Form A9211N5300000
     
    Chrome-Moly Steel—0.0002" Total Indicated Runout (TIR) Accuracy
    7/16"
    		0.323"0.242"21/64"1.3"1.57"DIN 6499-A, ISO 15488 Form A9211N94000000
     
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