Fowler 52-710-025-0 COAX-2D 2-Dimensional Coaxial Indicator Set - Inch

The Fowler 52-710-025-0 COAX-2D 2-Dimensional Coaxial Indicator Set is a precision centering and positioning tool designed for accurate component alignment in a wide range of machining applications. The dial remains stationary during machine spindle rotation, allowing the indicator to be used at any angle without interrupting the measurement process — ideal for milling machines and machining centers.

Key Features:

• 1.6" (42.5mm) diameter dial with 0-50 continuous reading scale
• Fine graduations and revolution counter at .0005" (.01mm) for highly precise readings
• Includes 3 internal feelers (measuring range: 5/32" – 12" / 4–300mm) and 3 external feelers (measuring range: 0–12" / 0–300mm)
• Center point feeler included for direct bore centering
• Restraining arm included to prevent dial rotation during spindle use
• Microfine black graduations against a yellow dial face for easy readability
• Complete set stored in a fitted protective carrying case

Specifications:

• Overall Length: 6-7/8" (175mm)
• Shank: 3/8" dia. x 7/8" (10mm x 20mm) long
• Feeler Ball Diameter: 1/8" (3mm)
• Dial Readings: 0–50
• Measuring Range: 0.250" (6mm) axis offset
• Locating Accuracy: ±0.0002" (0.005mm) of true center
• Maximum Recommended Speed: 800 RPM
• Internal Capacity: 5/32" – 12" (4–300mm) diameter
• External Capacity: 0–12" (0–300mm) diameter

The Fowler COAX-2D coaxial indicator set delivers shop-grade precision for machinists who need reliable centering accuracy. Whether locating bores, aligning workpieces, or setting up for tight-tolerance operations, this complete set provides the versatility and repeatability required in professional machining environments.