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    Shoulder-to-Ball-Center Length
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    DFARS Specialty Metals
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    27 Products

    Tooling Balls

    The shoulder on these tooling balls provides a consistent height reference point. Use the ball as a point from which any other point can be precisely measured, such as when determining hole centerlines and distances between hole centerlines.
    Slip Fit
    Image of Product. Front orientation. Contains Annotated. Tooling Balls.
    Slip-fit tooling balls have a slightly undersized shank for temporary mounting. Secure from the side with a set screw (not included).
    Two Piece—Two-piece tooling balls are welded to the shank. If excessive horizontal pressure is applied to the ball it will break off to prevent bending the shank or distorting the tight tolerances of the ball.
    Ball
    Dia.
    Shank
    Dia.
    Shoulder-to-Ball-Ctr.
    Lg. (A)
    Shank-to-Ball-Ctr.
    Lg. (B)
    Lg.
    (C)
    Material
    Hardness
    Each
    One Piece
    1/4"1/8"0.2"0.56"0.33"SteelRockwell C528481A25000000
    3/8"3/16"0.3"0.75"0.49"SteelRockwell C528481A2600000
    1/2"1/4"0.4"0.94"0.65"SteelRockwell C528481A2700000
    1/2"1/4"0.5"1.38"0.75"SteelRockwell C528481A2800000
    3/4"3/8"0.5"1.25"0.88"SteelRockwell C528481A2900000
     
    Two Piece
    1/2"1/4"0.5"1.13"0.75"SteelRockwell C608481A1500000
    1/2"1/4"1"1.63"1.25"SteelRockwell C608481A1600000
    1/2"1/4"1.25"1.88"1.5"SteelRockwell C608481A1700000
    5/8"5/16"0.45"1.05"0.76"SteelRockwell C608481A1800000
    1"1/2"0.7"1.63"1.2"SteelRockwell C608481A1900000
     
    Tooling Ball Covers
    Each
    Tooling Ball Covers for 1/4"-7/8" Ball Dia.8319A1100000
    Slip Fit, Threaded-Hole Mount
    Image of Product. Front orientation. Contains Annotated. Tooling Balls.
    Slip-fit tooling balls have a slightly undersized shank for temporary mounting. Secure from the side with a set screw (not included).
    Tooling balls with a threaded hole secure from the bottom by threading a cap screw (not included) into the shank.
    Two Piece—Two-piece tooling balls are welded to the shank. If excessive horizontal pressure is applied to the ball it will break off to prevent bending the shank or distorting the tight tolerances of the ball.
    Mounting
    Hole
    Ball
    Dia.
    Shank
    Dia.
    Shoulder-to-Ball-Ctr.
    Lg. (A)
    Shank-to-Ball-Ctr.
    Lg. (B)
    Lg.
    (C)
    Thread
    Size
    Thread
    Lg.
    Mounting Fasteners
    Included
    Material
    Hardness
    Each
    One Piece
    1/2"1/4"0.31"0.63"0.56"6-32
    		1/4"NoSteelRockwell C5231325A27000000
    12 mm6 mm12 mm22 mm18 mm6-32
    		1/4"NoSteelRockwell C5231325A26500000
     
    Two Piece
    1/2"1/4"0.31"0.63"0.56"6-32
    		1/4"NoSteelRockwell C608481A2100000
    1/2"1/4"0.5"0.88"0.75"6-32
    		1/4"NoSteelRockwell C608481A2200000
     
    Tooling Ball Covers
    Each
    Tooling Ball Covers for 1/4"-7/8" Ball Dia.8319A1100000

    Tooling Ball Covers

    Image of Product. Front orientation. Contains Annotated. Tooling Ball Covers.
    Protect tooling balls when not in use.
    Mounting Holes
    For Ball
    Dia.
    Ht.
    No.
    of
    Dia.
    Ctr.-to-Ctr.
    Mounting Fasteners
    Included
    Material
    Each
    1/4" to 7/8"1 1/2"27/32"1 7/8"NoZinc8319A1100000

    Unthreaded-Hole-Mount Ball Knobs

    Image of Product. Front orientation. Ball Knobs. Unthreaded-Hole-Mount Ball Knobs.
    Tap custom threads or drill a hole in the side of the knob to secure with a set screw. These easy-to-grip ball knobs are good for control levers and push-pull rods. Made of plastic, all resist oil, grease, and solvents.
    Hole
    Each
    Dp.
    Dia.
    Head
    Dia.
    Hub
    Dia.
    Temp. Range,
    ° F
    1-9
    10-Up
     
    Black Nylon
    3/4"1/4"1"1/2"-20 to 17560865K720000000000
    7/8"3/8"1 3/16"11/16"-20 to 17560865K7300000000
    1 5/16"1/2"1 9/16"3/4"-20 to 17560865K7400000000
     

    Adjustable-Height Tooling Balls

    Install tooling balls in a workpiece or fixture to create a precise measurement reference point. Push the shank further into the hole to adjust the height of the ball. Use them to determine hole centerlines and distances between hole centerlines.
    Slip Fit
    Image of Product. Front orientation. Contains Annotated. Tooling Balls. Adjustable-Height Tooling Balls.
    Slip-fit tooling balls have a slightly undersized shank for temporary mounting. Secure from the side with a set screw (not included).
    Two Piece—Two-piece tooling balls are welded to the shank. If excessive horizontal pressure is applied to the ball it will break off to prevent bending the shank or distorting the tight tolerances of the ball.
    Ball
    Dia.
    Shank
    Dia.
    Shank-to-Ball-Ctr.
    Lg. (B)
    Material
    Hardness
    Each
    One Piece
    1/4"1/8"0.56"SteelRockwell C528484A11000000
    3/8"3/16"0.75"SteelRockwell C528484A1200000
    1/2"1/4"0.94"SteelRockwell C528484A1300000
    1/2"1/4"1.5"SteelRockwell C528484A1400000
    1/2"3/8"1.5"SteelRockwell C528484A1500000
     
    Two Piece
    5/8"5/16"1.06"SteelRockwell C608484A3500000
    3/4"3/8"1.25"SteelRockwell C608484A3600000
    7/8"7/16"1.44"SteelRockwell C608484A3700000
    1"1/2"1.63"SteelRockwell C608484A3800000
     
    Tooling Ball Covers
    Each
    Tooling Ball Covers for 1/4"-7/8" Ball Dia.8319A1100000
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