Starrett 25-631J AGD Group 2 Dial Indicator 0-1" Range 0.0005" Graduation White Dial

The Starrett 25-631J is an AGD Group 2 precision dial indicator built for machinists, toolmakers, and quality control inspectors who demand accurate, repeatable measurements in demanding shop environments. With a 0–1.000" measuring range and fine 0.0005" graduations, this indicator delivers high-resolution readings across a 0–50 continuous white dial, with each full spindle revolution covering 0.050".

Key Features:

• AGD Group 2 standard — universally compatible with standard indicator holders and magnetic bases
• Shockless hardened steel gear train with full jewel bearings for smooth, low-friction operation
• Massive bridge provides rigid bearing support for consistent, repeatable readings
• Hardened stainless steel rack, spindle, gears, and pinions for long service life
• 0.375" stem diameter fits standard AGD collet holders and magnetic base posts
• Lug-on-center back for secure and versatile mounting
• Satin-finished stainless steel case with sharp bezel serrations for positive, tool-free dial adjustment
• Shatter-resistant, non-glare crystal protects the dial face in tough shop conditions
• Non-reflective eggshell white dial for easy, fatigue-free reading
• EDP No. 53304

The Starrett 25 Series is one of the most trusted lines of dial indicators in precision manufacturing. The 25-631J is an ideal choice for surface plate inspection, machine setup, runout checking, and any application requiring fine measurement resolution. An optional antimagnetic mechanism is available for use in magnetically sensitive environments.