| Specification | Details |
|---|---|
| Brand | INSIZE |
| Model | 7394-67A |
| Product Type | Carbide 3-Wire Thread Measuring Set |
| Wire Diameter | 0.455 mm |
| Applicable Pitch | 0.75 mm / 0.8 mm |
| Quantity | 3 Wires |
| Material | Carbide |
| Hardness | HRA90 |
| Diameter Accuracy | ±0.5 µm |
| Roundness | 0.5 µm |
| Cylindricity | 1 µm |
The INSIZE 7394-67A Carbide 3-Wires are precision thread-measuring wires designed for accurate measurement of external screw thread pitch diameters using the three-wire method. With a 0.455 mm wire diameter and compatibility with 0.75 mm and 0.8 mm thread pitches, this set is suitable for precision metric thread inspection and dimensional measurement. The 7394-67A is made from carbide with HRA90 hardness, providing a durable measuring surface for repeated professional use. INSIZE specifies ±0.5 µm diameter accuracy and supplies the set with a manufacturer inspection certificate.
Key Features
1. Precision 0.455mm Wire Diameter
The 7394-67A features a nominal 0.455 mm wire diameter, providing a precisely controlled measuring element for external screw thread pitch-diameter measurement.
2. Suitable for 0.75mm & 0.8mm Thread Pitches
This model is specified for 0.75 mm and 0.8 mm applicable thread pitches, making it suitable for compatible metric external thread inspection applications.
3. Carbide Construction with HRA90 Hardness
Because the wire diameter is above 0.3 mm, INSIZE specifies carbide construction with HRA90 hardness for the 7394-67A. This provides a durable measuring surface suitable for repeated precision measurement.
4. High Diameter Accuracy
The 7394 series specifies ±0.5 µm diameter accuracy, supporting precise thread measurements when the wires are correctly positioned and used with a suitable measuring instrument. The specified roundness is 0.5 µm.
5. Manufacturer Inspection Certificate
The 7394-67A is supplied with a manufacturer inspection certificate, supporting professional metrology, dimensional inspection, and quality-control applications.
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