Explore New Videos on Instagram #sharstoolco

Mitee-Bite 31250 0.90-1.39" Mild Steel ID Expansion Clamps

In stock

Shipping UPS Ground



More Information
Mfg SKU #31250
Flange Diameter2.205
Maximum Expansion Diameter1.3900
Minimum Expansion Diameter0.9000
Clamping Force (Lbs)5900
Center Screw Thread Size1/2-13
Mounting Screw Thread Size8-32
MaterialMild Steel
Mount Hole Diameter1.790
Flange Thickness0.25
Expansion Height0.81
Height Above Flange1.00
Overall Height1.25
Number of Mount Holes3
Thread Length Below Base0.71
Maximum Torque Ft/Lb120


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