12-20mm/0.47-0.79" IP54 Digital Three Points Internal Bore Micrometer Set - 3127 Series (Insize)

The Insize 3127 IP54 Digital Three-Points Internal Bore Micrometer Set provides quick, repeatable bore measurements in 12–20 mm (0.47–0.79") bores, even when fluids or coolants are present. Designed for engineers, machinists, QA staff, and serious hobbyists, this digital three-point bore micrometer combines a durable carbide measuring face with a clear readout and a reliable ratchet stop for consistent results across jobs.

• Digital readability with flexible units: Easy-to-read display shows measurements in mm or inches, with a dedicated mm/inch toggle and a precise 0.001 mm / 0.00005" resolution for accurate checks.
• Rugged, repeatable performance: Carbide measuring faces resist wear, IP54 waterproof protection guards against water, dust and coolant exposure, and a built-in ratchet stop ensures consistent force and repeatable results.
• Versatile, data-ready kit: Supplied with setting rings and extension rods for various bore sizes; includes an optional data output cable (code 7302-SPC6) to capture readings for QC logs; powered by SR44/LR44 batteries with automatic power-off.

With this set, you can speed bore inspections, reduce rework, and maintain tighter tolerances across production runs. The combination of durability, accuracy, and convenient data capture helps you improve workflow, ensure reliable results, and report measurements with confidence.