Starrett 52785 Swivel Post Snug 657 Series Indicator Base

Product Description

The STARRETT 52785 is a replacement swivel post snug designed for use with 657 Series magnetic indicator holders. This small but critical component secures the swivel post on a magnetic base assembly, maintaining the position of a dial indicator or test indicator during measurement tasks. It is used by machinists, tool and die technicians, and precision measurement professionals working with surface plates, machine tables, and similar setups. Weighing 0.5 pounds, the 52785 is a direct service part intended to restore full clamping function to a 657 Series base that has lost its original snug.

The 52785 is a service and replacement component for the STARRETT 657 Series magnetic indicator holder family. These holders are commonly found in machine shops, inspection departments, and on the floor of manufacturing facilities where dial indicators are used for setup, alignment, and part inspection. When the swivel post snug wears or is lost, the entire indicator holder loses its ability to lock the arm position precisely. This part restores that function without requiring replacement of the full base assembly.

Key Features

• Direct replacement swivel post snug for 657 Series indicator holders
• Restores positive locking of the swivel post arm position
• Compact, lightweight design at 0.5 pounds
• Sold individually as a single service component
• OEM-compatible fitment for STARRETT 657 Series bases

Compatibility

Designed for use with STARRETT 657 Series magnetic indicator holders. Verify the specific 657 Series model number against current STARRETT documentation before ordering to confirm fitment.

Installation Notes

Installation of this swivel post snug should be performed by a machinist or precision measurement technician familiar with magnetic base indicator holder assemblies. Before servicing the base, remove the indicator from the holder and place the magnetic base in the off position to prevent uncontrolled movement on ferrous surfaces. Use only hand tools appropriate for small fastener components and avoid over-tightening, which can damage the snug or the post threads. Consult the STARRETT 657 Series service documentation for the correct assembly sequence.