Spi 51-130-3 Indicator Positioner Holder Axial Dovetail

Product Description

The SPI 51-130-3 is an indicator positioner holder designed to securely mount and position dial indicators during precision measurement tasks. It includes an axial dovetail holder for stable, repeatable indicator placement. Fine adjustment is not included in this configuration, making it a straightforward, rigid mount solution. This type of holder is used in machine shops, fabrication environments, and maintenance settings where dial indicator positioning must be controlled and repeatable. Machinists, tool-and-die technicians, and precision maintenance professionals are the primary users.

The SPI 51-130-3 is suited for bench, fixture, or machine-mounted indicator setups where a fixed axial dovetail interface is the standard mounting method. It is appropriate for applications requiring consistent indicator positioning without the need for on-the-fly fine adjustment. Typical use cases include runout inspection, surface profiling, and part alignment checks on lathes, mills, and surface plates.

Key Features

• Includes axial dovetail holder for secure, standard indicator mounting
• Fixed rigid mount — no fine adjustment mechanism for simplified setup
• Lightweight construction at 0.1 pounds for easy handling and repositioning
• Single-piece package quantity for individual tool replacement or addition

Compatibility

Designed as a standard axial dovetail-style indicator positioner holder compatible with dial indicators that accept this common mounting interface. Confirm dovetail dimensions against your existing indicator and arm setup before installation.

Installation Notes

Installation is typically performed by machinists or precision measurement technicians. Ensure the mounting surface is clean and free of burrs before seating the dovetail holder. Secure all clamping hardware firmly before taking measurements to prevent indicator drift. Do not exceed the load or reach limits of the arm or indicator being used with this holder.