Custom Tolerance Measurement Fixture for Mitutoyo 543-251B Dial Indicator No

Custom Tolerance Measurement Fixture for Mitutoyo 543-251B Dial Indicator No Gauges

This is a custom-built, machined steel tolerance measurement fixture designed for use with the Mitutoyo 543-251B dial indicator. The fixture provides a rigid, stable platform for repeatable part inspection and tolerance checks in a machine shop or quality control environment. No dial indicators or gauges are included — this listing is for the fixture stand only.

Specifications & What's Included

• Type: Custom tolerance measurement / dial indicator fixture
• Compatible indicator: Mitutoyo 543-251B (and similarly sized dial indicators)
• Base dimensions: 6" x 8.75"
• Work table dimensions: 6.5" x 7"
• Table height above base: 6.25"
• Total fixture height: 17"
• Construction: Machined steel throughout
• Actuator: Large wheel and cam/linkage arm mechanism for controlled probe actuation
• Probe mount: Clamp-style spindle holder on vertical column (visible in photos)
• Base feet: Rubber/plastic leveling feet (blue, visible in photos)
• Gauges/indicators: Not included — fixture only

Applications

Custom tolerance measurement fixtures of this type are used in machine shops, manufacturing floors, and quality control labs to hold a dial indicator in a fixed, repeatable position while parts are brought into contact with the probe. The wheel-and-cam actuator allows the operator to raise and lower the probe with controlled, consistent motion — useful for go/no-go tolerance checks, incoming inspection, and dimensional verification. These fixtures are typically built in-house or by specialty metrology toolmakers to suit a specific indicator model and a recurring inspection task. The Mitutoyo 543-251B is a long-stroke digital/dial indicator commonly used in precision measurement applications, and a dedicated fixture like this ensures consistent probe positioning across many repeated measurements. This style of benchtop inspection stand is standard equipment in precision machining and quality assurance environments and remains in active use wherever manual dimensional inspection is performed.