McMaster-Carr logo
    Filter by
    System of Measurement
    Thread Size
    Industrial Info Snippet
    Head Diameter
    Machine Taper Number
    Grip Angle
    Head-to-Flange Length
    Collar Diameter
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Flange Thickness
    For Use With
    Maximum Torque
    Specifications Met
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Projection
    Shank Type
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    1 Product

    Retention Knobs

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

    Knob with Coolant Hole

    Knob with Coolant Hole

    Attach tool holders such as collet chucks and end mill holders to your CNC machine’s spindle. For proper operation, choose a knob that exactly matches your collet type and spindle dimensions. All meet industrial standards for tensile and shear strength. These knobs are also known as pull studs.
    Coolant Hole—Knobs with a coolant hole let coolant flow through to protect your tools and workpiece.
    Torque
    Range, ft·lbf
    Grip
    Angle
    Projection
    Head
    Dia.
    Collar
    Dia.
    Head-to-Flange
    Lg.
    Flange
    Thk.
    ID
    Min.
    Max.
    Material
    Features
    Mfr.
    Mfr. Model
    No.
    Specs.
    Met
    JIS
    Specification
    Each
    CAT 50 Machine Taper
     
    1"-8
    30°1.772"0.906"1.024"1.378"0.39"0.236"85110SteelO-Ring, Coolant HoleLyndex NikkenPS-B61ISO 7388-3JIS B 63394403N39000000
    Retention Knob, Cat 50 Taper Shank, 1"-8 Thread, Model Number PS-B61
    EachIn stock
     
    back to top