Spi 12-575-7 Chuck for Edge and Center Finder

Product Description

The SPI 12-575-7 is a replacement chuck designed for use with edge and center finders. It serves as the gripping or holding component that secures the edge and center finder body during spindle operation on milling machines and machining centers. This chuck allows the finder to rotate freely within it under spring tension, enabling accurate workpiece location. Machinists and toolroom technicians install this part as a direct replacement when the original chuck becomes worn or damaged. At 0.25 pounds, it is a lightweight but precision-critical component.

This chuck is suited for use in machine shop environments where edge and center finders are used to locate part edges, hole centers, and reference datums on milling machines, knee mills, and CNC machining centers. It is appropriate for both production and toolroom applications where accurate workpiece setup is required. The part ships as a single unit and is intended as a replacement for the chuck component of a compatible edge and center finder assembly.

Key Features

• Designed specifically for use with edge and center finders for accurate workpiece location
• Lightweight construction at 0.25 pounds for minimal spindle load
• Sold as a single replacement unit — no additional components included
• Direct OEM-style replacement for worn or damaged chuck components

Compatibility

Designed for use with SPI edge and center finder tools. Refer to your edge and center finder model documentation to confirm chuck fitment before ordering.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician familiar with spindle tooling assembly. Power down and lock out the machine spindle before removing or installing any chuck or finder components. Use appropriate hand tools and follow the finder manufacturer's assembly instructions to ensure proper seating and function. Do not overtighten retaining elements, as this can restrict the free rotation required for accurate edge-finding operation.