Starrett 64436 Indicator Positioner Holder Magnetic Base

Product Description

The STARRETT 64436 is a magnetic-base indicator positioner holder designed for precision measurement setups in machine shops, fabrication environments, and metrology applications. It features an articulated arm configuration with a 150 lb magnetic pull base, allowing secure, vibration-resistant mounting to ferrous surfaces. The 1-inch base height supports low-profile positioning on machine tables, lathe beds, and surface plates. The assembly includes a fine-adjustment mechanism for precise dial indicator placement and is installed by machinists, toolroom technicians, and quality control professionals who require repeatable indicator positioning during inspection or in-process measurement tasks.

The 64436 is suited for use on ferrous machine surfaces in both production and toolroom environments. The articulated arm provides multi-axis positioning flexibility, making it applicable for bore gauging setups, runout inspection, surface flatness checks, and fixture alignment. The included components form a complete indicator holding system ready to use without additional hardware. This holder is commonly deployed on CNC machining centers, mills, lathes, and surface plates where a stable, adjustable dial indicator mount is required.

Key Features

• 150 lb magnetic pull provides secure, stable hold on ferrous surfaces during measurement
• Articulated arm design allows multi-axis indicator positioning
• Fine-adjustment mechanism enables precise final positioning of the indicator
• Base height of 1 inch for low-profile setups on machine tables and surface plates
• Complete kit includes Fine-Adjustment 657W, Indicator Holding Rod PT17850, Magnetic Base 657P, Snug 657S with two 0.25 inch holes, and Universal Indicator Holder
• Magnetic base mounts and releases quickly without tools, reducing setup time

Compatibility

Designed as an OEM-style magnetic base indicator holder compatible with standard dial indicator stems and universal indicator holding rods. Includes STARRETT component parts 657W, PT17850, 657P, and 657S as specified by the manufacturer.

Installation Notes

Installation is performed by machinists or metrology technicians and requires no special tools beyond positioning the magnetic base on a clean, flat ferrous surface. Ensure the mounting surface is free of chips, coolant, and debris before activating the magnet to achieve full rated pull force. Do not use on non-ferrous surfaces, as the magnetic base will not hold. Articulated arm joints should be snugged finger-tight before fine-adjusting and then locked securely before taking measurements.