Spi M2/30T Spi Dial Drop Indicator 0-100 Lug Back

Product Description

The SPI M2/30T SPI is a dial drop indicator designed for precision measurement in machining, inspection, and surface-plate work. It features a 0-100 dial reading with 0.0100 mm graduation, giving technicians fine-resolution readings for runout checks, part alignment, and surface deviation measurements. The 60 mm white dial face provides clear readability in workshop lighting. The lug back mount allows secure, consistent positioning on indicator holders, magnetic bases, and surface-gauge arms. This instrument is used by machinists, quality-control inspectors, and toolroom technicians who need repeatable, direct-reading measurement without calculation.

Dial drop indicators of this type are standard equipment in machine shops, fabrication facilities, and inspection labs. They are used to check shaft runout, verify part flatness, indicate spindle alignment, and confirm fixture repeatability. The 0.0100 mm graduation makes this indicator appropriate for general-purpose precision work where metric measurements are the shop standard. The lug back mounting style is commonly used with articulating indicator arms, post holders, and adjustable clamp setups on milling machines, lathes, and surface plates.

Key Features

• 0-100 dial reading with 0.0100 mm graduation for fine-resolution metric measurement
• 60 mm diameter white dial face for clear readability in shop conditions
• Lug back mount for compatibility with standard indicator holders and magnetic base arms
• Compact dial drop design suited for confined-space measurement setups
• Single-unit packaging with a minimum order quantity of 1

Compatibility

Designed as a standard lug-back dial drop indicator for use with compatible indicator holders, magnetic base arms, and surface-gauge setups that accept lug-back mounted instruments.

Installation Notes

Dial drop indicators are installed by qualified machinists or inspection technicians using appropriate holder hardware. Secure the lug back firmly in the holder before taking readings to prevent movement that would affect measurement accuracy. Avoid overtightening the lug clamp, as excess clamping force can distort the indicator body. Zero the dial face at the measurement reference point before recording readings.