Spi MS160412017 Indicator Positioner Holder 175 Lb

Product Description

The SPI MS160412017 is a magnetic-base indicator positioner holder designed to securely mount dial indicators, test indicators, and similar precision measurement instruments during inspection and machining operations. The unit features a 175 lb magnetic pull force to hold position firmly on ferrous machine surfaces, and an articulated arm with fine adjustment capability for precise indicator positioning. The rectangular magnetic base measures 60 mm in length and 55 mm in height, providing a stable footprint on milling tables, surface plates, lathes, and similar metalworking equipment. At 1.7 pounds, the assembly is compact enough for bench-top and machine-tool use.

This positioner holder is suited for metrology and quality control applications in machine shops, toolrooms, and manufacturing environments. It is typically used when setting up dial indicators for runout checks, bore alignment, surface flatness verification, and part inspection routines. The magnetic base activates and releases quickly, allowing repositioning without disturbing the workpiece setup. The articulated arm gives technicians the reach and angle flexibility needed to position the indicator tip precisely on the feature being measured.

Key Features

• 175 lb magnetic pull force holds securely on ferrous surfaces during measurement
• Articulated arm design allows flexible positioning around workpieces and fixtures
• Fine adjustment mechanism enables precise indicator tip placement
• Rectangular magnetic base included — no separate base purchase required
• Overall arm reach of 435 mm provides extended positioning range
• Compact and lightweight at 1.7 pounds for easy repositioning on the bench or machine

Compatibility

Designed as an OEM-style magnetic base indicator holder compatible with standard dial indicators and test indicators used in general metrology and machine-tool inspection applications.

Installation Notes

Installation requires a clean, flat ferrous surface for the magnetic base to achieve full rated pull force — remove chips, coolant, and debris from the mounting surface before activating the magnet. No tools are required to mount or reposition the base. The articulated arm joints should be snugged firmly before taking a measurement reading to prevent indicator drift. Power down or lock out rotating equipment before placing or adjusting the indicator holder near moving parts.