Mitee-Bite 31000 0.16-0.29" Mild Steel ID Expansion Clamps

SKU 212-4401

Mitee-Bite 31000 0.16-0.29" Mild Steel ID Expansion Clamps

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SKU 212-4401
Mfg SKU # 31000
Brand Mitee-Bite
Flange Diameter 0.7870
Maximum Expansion Diameter 0.2900
Minimum Expansion Diameter 0.1600
Clamping Force (Lbs) 250
Center Screw Thread Size 2-56
Mounting Screw Thread Size 2-56
Material Mild Steel
Mount Hole Diameter 0.540
Flange Thickness 0.12
Expansion Height 0.24
Height Above Flange 0.30
Overall Height 0.42
Number of Mount Holes 3
Thread Length Below Base 0.16
Maximum Torque Ft/Lb 0.5
Full Details
  • Made in USAMade in USA

Product Spotlight

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