Check the listing for details. (4) Magnetic Bases Indicator Bases Anyform Base. Condition: Used. Listed at 29.99 USD. The clamp is missing for the anyform base, the other 3 work. One is fairly weak. The Magnetic Bases Indicator Bases Anyform Base is a versatile tool designed for metalworking inspection and measurement. These indicator bases use powerful magnets to securely hold precision indicators and probes in place for accurate readings during CNC machining and other manufacturing processes. The magnetic bases can easily be attached to metal surfaces, providing stability and precision when measuring or inspecting components. With four bases included in the set, they offer flexibility and convenience for various inspection applications.