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Mitee-Bite 31300 1.15-1.65" Mild Steel ID Expansion Clamps

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More Information
Mfg SKU #31300
Flange Diameter2.736
Maximum Expansion Diameter1.6500
Minimum Expansion Diameter1.1500
Clamping Force (Lbs)10000
Center Screw Thread Size5/8-11
Mounting Screw Thread Size10-32
MaterialMild Steel
Mount Hole Diameter2.200
Flange Thickness0.31
Expansion Height1.06
Height Above Flange1.25
Overall Height1.56
Number of Mount Holes3
Thread Length Below Base0.79
Maximum Torque Ft/Lb224


Made in USAMade in USA


ID Xpansion™ Clamps

The ID Xpansion™ clamp is the ideal solution to hold parts on an inside diameter for high density machining on vertical or horizontal machining centers. It can also be used as an expanding mandrel on a lathe.

  • These machinable clamps are produced in 12L14 steel with black oxide coating in 12 sizes and can hold internal diameters from under 3/16 to almost 10 inches (4.1 to 254mm). #10 manufactured using 7075-T6 aluminum.

    The low profile ID Xpansion™ Clamp can hold several parts in one compact area for secondary operations without any clamping interference. They are quickly tightened with a hex key, torque driver or can be mated to hydraulic pull cylinders for automation.

  • The flange diameter of the clamp is held to a close tolerance for precision locating in a machined pocket on work cubes and fixture plates.

    The customer machines the mild steel clamp to match the bore of the part ensuring a proper fit. Often times the clamps can be remachined for different size jobs.


  • Low Profile
  • Ideal way to hold multiple parts on an inside diameter for multiple machining on a vertical or horizontal machining center
  • Strong clamping surface
  • Heat-treated and coated screw for long life
  • Clamp body made of mild steel for machinability