Parker Clamps for Magnetic Inspection Parker research corporation| 4490 Parker Clamps for Magnetic Inspection Print Parker research corporation| 4490 Parker Clamps for Magnetic Inspection Braided contact clamps are convenient for sectional magnetic particle inspections. Options: 1865A: Spring loaded braided contact clamps, 4/0 lug connection. Opens up to 2.5” (6.4cm). 14710: Replacement copper braid for 1865A clamp. 169802: Clamp with leaded copper braid contact pad and double lug connections. Opens up to 7” (18cm). Contact us for more information and/or to receive a quote. Request for information