Description
Insize Metric Screw Thread Micrometer 3281-S25
The Insize 3281-S25 Metric Screw Thread Micrometer is purpose-built for accurate measurement of screw thread pitch diameters within the 0–25mm range. Designed for professional machining, inspection, and quality control applications, this precision instrument is suitable for measuring both metric and unified threads with a 60° thread angle.
Equipped with a non-rotating spindle, the micrometer ensures stable and consistent contact with thread flanks, reducing measurement error caused by rotation. The integrated ratchet stop applies uniform measuring pressure, delivering repeatable and reliable results during critical thread inspection tasks. With a 0.01mm graduation, the 3281-S25 provides the resolution required for precise thread measurement.
Specifications :
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Part No: 3281-S25
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Type: Metric screw thread micrometer
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Measurement Range: 0–25mm
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Graduation: 0.01mm
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Material: Stainless steel
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Data Output: No
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L: 42mm
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b: 26mm
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Setting Standard: Not supplied (0–25mm range); compatible with 60° and optional 55° setting standards
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Included Accessories: 6 pairs of 60° thread measuring tips
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Optional Accessories: 55° setting standards
Key Features :
- Measurement range: 0–25mm
- Graduation: 0.01mm for high-resolution thread measurement
- Non-rotating spindle for consistent thread flank contact
- Ratchet stop for controlled, repeatable measuring force
- Supplied with 6 pairs of interchangeable 60° measuring tips:
- 0.4–0.5mm / 64–48 TPI
- 0.6–0.9mm / 44–28 TPI
- 1–1.75mm / 24–14 TPI
- 2–3mm / 13–9 TPI
- 3.5–5mm / 8–5 TPI
- 5.5–7mm / 4.5–3.5 TPI
- Manufactured from durable stainless steel for long service life
Well designed and built for durability, the Insize 3281-S25 Screw Thread Micrometer is trusted by machinists, toolmakers, and inspectors for accurate and repeatable screw thread pitch diameter measurement in workshop and laboratory environments.
