75-100mm 3-4" IP65 Digital Outside Micrometer - 3101 Series (Insize)

Meet the 75–100 mm (3–4") IP65 Digital Outside Micrometer from Insize. Designed for engineers, machinists, and technicians, it delivers fast, precise external measurements even in challenging environments. The IP65 waterproof housing protects the electronics from washdown fluids, grime, and coolant spray, so you can rely on accurate readings on the production floor.

Carbide measuring faces provide wear resistance for long tool life and repeatable results, while the clear digital display and simple button layout (on/off, zero, mm/in, ABS/INC, data output) reduce setup time and reading errors. It includes a spherical anvil for consistent contact and calibration standards to keep measurements tight (setting standards are included, except for the 0‑25 mm/0‑1" range). Powered by SR44 or LR44 batteries, the unit also offers data output options and supports practical workflow additions: a foot switch for data transfer (code 7304-2) and a data output cable (code 7302-SPC6). When you need more reach, optional data output covers measurements up to 300 mm (12").

• IP65 waterproof construction: Protects the measurement edge and electronics from dust, water, and coolant exposure, delivering reliable readings on busy production floors and in washdown environments.
• Carbide measuring faces for durability: Hardened contact surfaces resist wear, extending tool life and maintaining consistent, repeatable measurements across many uses.
• Digital readout with easy data transfer: 0.001 mm / 0.00005" resolution, mm/inch conversion, ABS/INC, and data output for quick, accurate readings and seamless transfer to QC systems; includes spherical anvil and calibration standards, with optional foot switch (7304-2) and data cable (7302-SPC6) for enhanced data workflow, up to 300 mm (12").

This micrometer streamlines your measurement routine, helping you set up faster, reduce rework, and improve overall precision. Its rugged build, precise digital readout, and flexible data options make it a dependable partner for everyday measuring tasks—from routine QC checks to demanding production measurements—delivering trustworthy results you can rely on.