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    1 Product

    CAT Taper Retention Knobs with Coolant Hole

    Image of Product. Front orientation. Retention Knobs. CAT Taper Retention Knobs with Coolant Hole.
    Image of Attribute. Knob. Front orientation. Contains Annotated. Retention Knobs. CAT Taper Retention Knobs with Coolant Hole.
    Image of Attribute. Knob with Pilot. Front orientation. Contains Annotated. Retention Knobs. CAT Taper Retention Knobs with Coolant Hole.

    Knob

    Knob with Pilot

    Lock tool holders in place on CNC machines with a through-spindle coolant (TSC) system. They fit machines with a CAT taper spindle. All meet industrial standards for tensile and shear strength. Also known as pull studs. Use a torque wrench with a retention knob socket or a changeable-head torque wrench to tighten them.
    To ensure compatibility with your machine, compare the features on these knobs, such as the location of O-ring seals and the pilot design, to those on your current knob.
    Knobs with a pilot ensure precise alignment between the tool holder and spindle, reducing vibration and runout. To upgrade a standard knob to one with a pilot, confirm that the pilot diameter is small enough to fit in your tool holder without touching the inner walls where the knob seats.
    Flange O-Ring Included—Knobs with flange O-rings block external coolant from entering your machine spindle. Match the O-ring placement and style to your current setup to ensure optimal sealing and performance.
    Ground Face—Knobs with a ground face have a tighter seal than those without one, which helps prevent coolant leaks.
    Grip Angle—Grip angle is the sloped part of the knob that the machine grips to secure the tool holder. A 15˚ grip angle is sometimes referred to as a 75˚ grip angle. A 30˚ grip angle is sometimes referred to as a 60˚ grip angle.
    Grip
    Angle
    Projection
    Head
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    Coolant Hole
    Diameter
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    O-Rings
    Included
    Features
    Mfr.
    Mfr. Model
    No.
    Specs.
    Met
    Each
    CAT 40 Machine Taper
     
    5/8"-11
    15°1.03"0.748"0.276"0.512"0.793"0.276"44 to 59Flange O-RingGround FaceLyndex NikkenC40-1500-EUASME B5.504403N11000000
    Taper Retention Knob with Coolant Hole, Cat 40, 5/8"-11 Size, Model C40-1500-Eu
    EachIn stock
     
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