Pro Grade Granite Comparator Base 150mm By 100mm By 50mm With Digital Indicator For Precise Calibration And Flatness Testing Natural Granite Stand Built To Stay Rock Solid In Stock
✔️ Single unit granite base with 0.0027 mm flatness, DIN876-00
The granite comparator base is a precision measurement platform used in metrology labs, inspection rooms, and machine shops. Built from natural black granite, it delivers rock-solid stability and an ultra-flat reference surface for calibration and flatness testing of indicators, height gauges, and other precision instruments.
✅ Ultra-high precision: Ground to DIN876-00, DIN876-0 standards for flatness
✅ Material: natural black granite for high stiffness and low expansion
✅ Size and flatness: 150x100x50 mm base; flatness 0.0027 mm
✅ Non-magnetic and radiation-free for interference-free testing
💡 What is a granite comparator base used for in precision metrology and calibration?
In short, this base provides a rock-solid reference plane for accurate calibration and flatness verification.
- Handy for aligning dial indicators and height gauges
- Supports repeatable measurements across tools and fixtures
- Non-magnetic and stable over time for long-term accuracy
- Ideal for labs and machine shops needing precise fixturing