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    89 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-20 Collet
     
    52100 Alloy Steel—0.0004" Total Indicated Runout (TIR) Accuracy
    No. 0 to No. 6M1.6 to M3.50.141"0.11"9/64"0.83"1.24"DIN 6499-A, ISO 15488 Form A9211N21000000
    5/32" to No. 8M4
    0.168"0.131"5/32"0.83"1.24"DIN 6499-A, ISO 15488 Form A9211N2200000
    3/16" to No. 10M4.5 to M50.194"0.152"3/16"0.83"1.24"DIN 6499-A, ISO 15488 Form A9211N2300000
    No. 12 to 7/32"0.22"0.165"7/32"0.83"1.24"DIN 6499-A, ISO 15488 Form A9211N2400000
    1/4"
    M6 to M6.50.255"0.191"1/4"0.83"1.24"DIN 6499-A, ISO 15488 Form A9211N2500000
    5/16"
    M6.5 to M80.318"0.238"5/16"0.83"1.24"DIN 6499-A, ISO 15488 Form A9211N2600000
    3/8"
    M10
    0.381"0.286"3/8"0.83"1.24"DIN 6499-A, ISO 15488 Form A9211N2700000
    7/16"
    0.323"0.242"21/64"0.83"1.24"DIN 6499-A, ISO 15488 Form A9211N2800000
    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
    5/32" to No. 8M4
    0.168"0.131"5/32"0.83"1.22"DIN 6499-A, ISO 15488 Form A9211N67000000
    3/16" to No. 10M4.5 to M50.194"0.152"3/16"0.83"1.22"DIN 6499-A, ISO 15488 Form A9211N68000000
    No. 12 to 7/32"0.22"0.165"7/32"0.83"1.22"DIN 6499-A, ISO 15488 Form A9211N69000000
    1/4"
    M6 to M6.50.255"0.191"1/4"0.83"1.22"DIN 6499-A, ISO 15488 Form A9211N71000000
    5/16"
    M6.5 to M80.318"0.238"5/16"0.83"1.22"DIN 6499-A, ISO 15488 Form A9211N72000000
    3/8"
    M10
    0.381"0.286"3/8"0.83"1.22"DIN 6499-A, ISO 15488 Form A9211N73000000
    7/16"
    0.323"0.242"21/64"0.83"1.22"DIN 6499-A, ISO 15488 Form A9211N74000000
    1/2"
    M12 to M12.50.367"0.275"23/64"0.83"1.22"DIN 6499-A, ISO 15488 Form A9211N75000000
     

    ER Collets

    Image of System. Side1 orientation. CrossSection view. Contains Annotated. Milling Machine Collets. ER Collets.
    Image of Product. Front orientation. Milling Machine Collets. ER Collets.
    The most widely used type of collet, these collets hold cutting tools in ER collet chucks for milling, drilling, and routing. Spring slots clamp evenly around the shank to minimize runout for clean, accurate cuts and long tool life. The slots flex to grip slightly undersized shanks too, so you don't need an exact match for each cutting tool in your lineup. You can also use these collets in ER collet fixtures and custom setups to keep small round parts centered.
    52100 Alloy Steel—Hardened 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 but will wear faster than hardened chrome-moly steel collets if you change bits frequently.
    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.
    Collet
    Size
    Grip Range
    Total Indicated Runout
    (TIR) Accuracy
    ID Tolerance
    Max. Body
    Dia.
    Overall
    Lg.
    Specs. Met
    Each
    ER-20
     
    Hardened 52100 Alloy Steel
    1/16"0.043" to 0.062"0.0002"-0.0004" to 0"0.83"1.24"DIN 6499-B, ISO 15488 Form B1724N102000000
    3/32"0.054" to 0.093"0.0002"-0.0004" to 0"0.83"1.24"DIN 6499-B, ISO 15488 Form B1724N10300000
    1/8"0.086" to 0.125"0.0002"-0.0004" to 0"0.83"1.24"DIN 6499-B, ISO 15488 Form B1724N10400000
    5/32"0.117" to 0.156"0.0002"-0.0004" to 0"0.83"1.24"DIN 6499-B, ISO 15488 Form B1724N10500000
    3/16"0.148" to 0.187"0.0002"-0.0004" to 0"0.83"1.24"DIN 6499-B, ISO 15488 Form B1724N10600000
    7/32"0.179" to 0.218"0.0002"-0.0004" to 0"0.83"1.24"DIN 6499-B, ISO 15488 Form B1724N10700000
    1/4"0.211" to 0.250"0.0002"-0.0004" to 0"0.83"1.24"DIN 6499-B, ISO 15488 Form B1724N10800000
    9/32"0.242" to 0.281"0.0002"-0.0004" to 0"0.83"1.24"DIN 6499-B, ISO 15488 Form B1724N10900000
    5/16"0.273" to 0.312"0.0002"-0.0004" to 0"0.83"1.24"DIN 6499-B, ISO 15488 Form B1724N11100000
    11/32"0.304" to 0.343"0.0002"-0.0004" to 0"0.83"1.24"DIN 6499-B, ISO 15488 Form B1724N11200000
    3/8"0.336" to 0.375"0.0002"-0.0004" to 0"0.83"1.24"DIN 6499-B, ISO 15488 Form B1724N11300000
    7/16"0.398" to 0.437"0.0002"-0.0004" to 0"0.83"1.24"DIN 6499-B, ISO 15488 Form B1724N11400000
    15/32"0.429" to 0.468"0.0002"-0.0004" to 0"0.83"1.24"DIN 6499-B, ISO 15488 Form B1724N11500000
    1/2"0.461" to 0.500"0.0002"-0.0004" to 0"0.83"1.24"DIN 6499-B, ISO 15488 Form B1724N11600000
    1 mm0.5 mm to 1 mm0.0002"-0.0004" to 0"0.83"1.24"DIN 6499-B, ISO 15488 Form B1724N11700000
    1.5 mm1 mm to 1.5 mm0.0002"-0.0004" to 0"0.83"1.24"DIN 6499-B, ISO 15488 Form B1724N11800000
    2 mm1.5 mm to 2 mm0.0002"-0.0004" to 0"0.83"1.24"DIN 6499-B, ISO 15488 Form B1724N11900000
    3 mm2 mm to 3 mm0.0002"-0.0004" to 0"0.83"1.24"DIN 6499-B, ISO 15488 Form B1724N12100000
    4 mm3 mm to 4 mm0.0002"-0.0004" to 0"0.83"1.24"DIN 6499-B, ISO 15488 Form B1724N12200000
    5 mm4 mm to 5 mm0.0002"-0.0004" to 0"0.83"1.24"DIN 6499-B, ISO 15488 Form B1724N12300000
    6 mm5 mm to 6 mm0.0002"-0.0004" to 0"0.83"1.24"DIN 6499-B, ISO 15488 Form B1724N12400000
    8 mm7 mm to 8 mm0.0002"-0.0004" to 0"0.83"1.24"DIN 6499-B, ISO 15488 Form B1724N12500000
    10 mm9 mm to 10 mm0.0002"-0.0004" to 0"0.83"1.24"DIN 6499-B, ISO 15488 Form B1724N12600000
    12 mm11 mm to 12 mm0.0002"-0.0004" to 0"0.83"1.24"DIN 6499-B, ISO 15488 Form B1724N12700000
    14 mm13 mm to 14 mm0.0002"-0.0004" to 0"0.83"1.24"DIN 6499-B, ISO 15488 Form B1724N12800000
     
    Hardened Chrome-Moly Steel
    1/16"0.043" to 0.063"0.0002"-0.0001" to 0.0001"0.83"1.22"DIN 6499-B, ISO 15488 Form B1724N1100000
    3/32"0.074" to 0.094"0.0002"-0.0001" to 0.0001"0.83"1.22"DIN 6499-B, ISO 15488 Form B1724N1200000
    1/8"0.105" to 0.125"0.0002"-0.0001" to 0.0001"0.83"1.22"DIN 6499-B, ISO 15488 Form B1724N1300000
    5/32"0.141" to 0.156"0.0002"-0.0001" to 0.0001"0.83"1.22"DIN 6499-B, ISO 15488 Form B1724N1400000
    3/16"0.148" to 0.188"0.0002"-0.0001" to 0.0001"0.83"1.22"DIN 6499-B, ISO 15488 Form B1724N1500000
    7/32"0.179" to 0.219"0.0002"-0.0001" to 0.0001"0.83"1.22"DIN 6499-B, ISO 15488 Form B1724N1600000
    1/4"0.211" to 0.250"0.0002"-0.0001" to 0.0001"0.83"1.22"DIN 6499-B, ISO 15488 Form B1724N1700000
    9/32"0.242" to 0.281"0.0002"-0.0001" to 0.0001"0.83"1.22"DIN 6499-B, ISO 15488 Form B1724N1800000
    5/16"0.273" to 0.313"0.0002"-0.0001" to 0.0001"0.83"1.22"DIN 6499-B, ISO 15488 Form B1724N1900000
    11/32"0.304" to 0.344"0.0002"-0.0001" to 0.0001"0.83"1.22"DIN 6499-B, ISO 15488 Form B1724N2100000
    3/8"0.336" to 0.375"0.0002"-0.0001" to 0.0001"0.83"1.22"DIN 6499-B, ISO 15488 Form B1724N2200000
    13/32"0.367" to 0.406"0.0002"-0.0001" to 0.0001"0.83"1.22"DIN 6499-B, ISO 15488 Form B1724N2300000
    7/16"0.398" to 0.438"0.0002"-0.0001" to 0.0001"0.83"1.22"DIN 6499-B, ISO 15488 Form B1724N2400000
    15/32"0.429" to 0.469"0.0002"-0.0001" to 0.0001"0.83"1.22"DIN 6499-B, ISO 15488 Form B1724N2500000
    1/2"0.461" to 0.500"0.0002"-0.0001" to 0.0001"0.83"1.22"DIN 6499-B, ISO 15488 Form B1724N2600000
    2 mm1.5 mm to 2 mm0.0002"-0.0001" to 0.0001"0.83"1.22"DIN 6499-B, ISO 15488 Form B1724N10100000
    3 mm2.5 mm to 3 mm0.0002"-0.0001" to 0.0001"0.83"1.22"DIN 6499-B, ISO 15488 Form B1724N2700000
    4 mm3.5 mm to 4 mm0.0002"-0.0001" to 0.0001"0.83"1.22"DIN 6499-B, ISO 15488 Form B1724N2800000
    5 mm4 mm to 5 mm0.0002"-0.0001" to 0.0001"0.83"1.22"DIN 6499-B, ISO 15488 Form B1724N2900000
    6 mm5 mm to 6 mm0.0002"-0.0001" to 0.0001"0.83"1.22"DIN 6499-B, ISO 15488 Form B1724N300000
    7 mm6 mm to 7 mm0.0002"-0.0001" to 0.0001"0.83"1.22"DIN 6499-B, ISO 15488 Form B1724N3100000
    8 mm7 mm to 8 mm0.0002"-0.0001" to 0.0001"0.83"1.22"DIN 6499-B, ISO 15488 Form B1724N3200000
    10 mm9 mm to 10 mm0.0002"-0.0001" to 0.0001"0.83"1.22"DIN 6499-B, ISO 15488 Form B1724N3300000
    12 mm11 mm to 12 mm0.0002"-0.0001" to 0.0001"0.83"1.22"DIN 6499-B, ISO 15488 Form B1724N3400000
     

    ER Collet Sets

    Image of Product. Collet Set with Wood Stand. Front orientation. Milling Machine Collets. ER Collet Sets, Wood Stand.
    Image of Product. Collet Set. Front orientation. Milling Machine Collets. ER Collet Sets.

    Collet Set with Wood

    Stand

    Collet Set

    Keep a set of ER collets on hand to hold cutting tools for milling, drilling, and routing. They’re the most versatile and widely used type of collet. Spring slots clamp evenly around the shank to minimize runout for clean, accurate cuts and long tool life. The slots flex to grip slightly undersized shanks too, so you don't need an exact match for each cutting tool in your lineup. You can also use these collets in ER collet fixtures and custom setups to keep small round parts centered.
    52100 Alloy Steel—Hardened 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 but will wear faster than hardened chrome-moly steel collets if you change bits frequently.
    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.
    No. of
    Pieces
    Collet Sizes Included
    Total Indicated Runout
    (TIR) Accuracy
    ID Tolerance
    Approx. Dia. Compression
    (Collet Size)
    Max. Body
    Dia.
    Overall
    Lg.
    Container
    Type
    Specs. Met
    Each
    ER-20 Collet
     
    Hardened 52100 Alloy Steel
    122 mm-13 mm (increments of 1 mm)0.0002"-0.0004" to 0"1/64" (2 mm)
    1/32" (3 mm to 13 mm)
    0.83"1.24"Wood StandDIN 6499-B, ISO 15488 Form B9411N270000000
    151/16"-1/2" (increments of 1/32")0.0002"-0.0004" to 0"1/64" (1/16")
    1/32" (3/32" to 1/2")
    0.83"1.24"Wood StandDIN 6499-B, ISO 15488 Form B9411N28000000
     
    Hardened Chrome-Moly Steel
    113 mm-13 mm (increments of 1 mm)0.0002"-0.0001" to 0.0001"1/64" (3 mm to 4 mm)
    1/32" (5 mm to 13 mm)
    0.83"1.22"DIN 6499-B, ISO 15488 Form B9411N15000000
    151/16"-1/2" (increments of 1/32")0.0002"-0.0001" to 0.0001"1/64" (1/16" to 5/32")
    1/32" (3/16" to 1/2")
    0.83"1.22"DIN 6499-B, ISO 15488 Form B9411N16000000
     

    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 ProductInUse. Angled Ports Shown in Use. Front orientation. Milling Machine Collets. ER Coolant Control Collets, Angled Ports Coolant Delivery Collet.

    Sealed

    Shown in Use

    Angled Ports

    Shown in Use

    Image of Product. Sealed. Front orientation. Milling Machine Collets. ER Coolant Control Collets, Sealed Coolant Delivery Collet.
    Image of Product. Angled Ports. Front orientation. Milling Machine Collets. ER Coolant Control Collets, Angled Ports Coolant Delivery Collet.

    Sealed

    Angled Ports

    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.
    Angled Ports Coolant Delivery Collet—Collets with angled ports direct coolant around, not through, the tool, so you get the benefit of coolant control without needing expensive tools with coolant holes.
    52100 Alloy Steel—Hardened 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 but will wear faster than hardened chrome-moly steel collets if you change bits too frequently.
    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-20—Sealed
     
    Hardened 52100 Alloy Steel
    1/8"Not Rated0.0002"-0.0004" to 0"2,0000.83"1.24"DIN 6499-B, ISO 15488 Form B1724N201000000
    5/32"Not Rated0.0002"-0.0004" to 0"2,0000.83"1.24"DIN 6499-B, ISO 15488 Form B1724N20200000
    3/16"Not Rated0.0002"-0.0004" to 0"2,0000.83"1.24"DIN 6499-B, ISO 15488 Form B1724N20300000
    7/32"Not Rated0.0002"-0.0004" to 0"2,0000.83"1.24"DIN 6499-B, ISO 15488 Form B1724N20400000
    1/4"Not Rated0.0002"-0.0004" to 0"2,0000.83"1.24"DIN 6499-B, ISO 15488 Form B1724N20500000
    5/16"Not Rated0.0002"-0.0004" to 0"2,0000.83"1.24"DIN 6499-B, ISO 15488 Form B1724N20600000
    3/8"Not Rated0.0002"-0.0004" to 0"2,0000.83"1.24"DIN 6499-B, ISO 15488 Form B1724N20700000
    1/2"Not Rated0.0002"-0.0004" to 0"2,0000.83"1.24"DIN 6499-B, ISO 15488 Form B1724N20800000
     
    Hardened Chrome-Moly Steel
    3/16"0.183" to 0.188"0.0002"-0.0001" to 0.0001"2,9000.83"1.22"DIN 6499-B, ISO 15488 Form B1724N3500000
    1/4"0.230" to 0.250"0.0002"-0.0001" to 0.0001"2,9000.83"1.22"DIN 6499-B, ISO 15488 Form B1724N3600000
    3/8"0.355" to 0.375"0.0002"-0.0001" to 0.0001"2,9000.83"1.22"DIN 6499-B, ISO 15488 Form B1724N3700000
    1/2"0.480" to 0.500"0.0002"-0.0001" to 0.0001"2,9000.83"1.22"DIN 6499-B, ISO 15488 Form B1724N3800000
     
    ER-20—Angled Ports
     
    Hardened 52100 Alloy Steel
    1/8"Not Rated0.0002"-0.0004" to 0"1,4000.83"1.24"DIN 6499-B, ISO 15488 Form B1724N20900000
    5/32"Not Rated0.0002"-0.0004" to 0"1,4000.83"1.24"DIN 6499-B, ISO 15488 Form B1724N21100000
    3/16"Not Rated0.0002"-0.0004" to 0"1,4000.83"1.24"DIN 6499-B, ISO 15488 Form B1724N21200000
    7/32"Not Rated0.0002"-0.0004" to 0"1,4000.83"1.24"DIN 6499-B, ISO 15488 Form B1724N21300000
    1/4"Not Rated0.0002"-0.0004" to 0"1,4000.83"1.24"DIN 6499-B, ISO 15488 Form B1724N21400000
    5/16"Not Rated0.0002"-0.0004" to 0"1,4000.83"1.24"DIN 6499-B, ISO 15488 Form B1724N21500000
    3/8"Not Rated0.0002"-0.0004" to 0"1,4000.83"1.24"DIN 6499-B, ISO 15488 Form B1724N21600000
     
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