Starrett 78MXTZ-20 Inside Micrometer
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Starrett 78MXTZ-20 inside micrometer for 16-20mm bore measurement with 0.0025mm resolution, tungsten carbide faces, and ratchet stop for consistent accuracy.
Product details
| Model | 78MXTZ-20 |
| Manufacturer | Starrett |
| Category | Micrometers |
| Availability | Made to order |
Description
Overview
The Starrett 78MXTZ-20 is a precision inside micrometer designed for accurate measurement of bore diameters and internal dimensions in the mid-range. With its interchangeable contact systems, this instrument provides reliable, repeatable measurements for precision machining, quality control, and dimensional verification applications.
Key Features
- Measurement range: 16-20mm
- Resolution: 0.0025mm (2-point contact) or 0.005mm (3-point contact)
- Tungsten carbide measuring faces on 3-point heads for durability
- Ratchet stop ensures consistent, repeatable measurements
- Self-centering contacts for accurate readings
- Blind bore measuring capability (diameter above 12.5mm)
- Extensions available up to 150mm for deep hole measuring
- Setting ring included for calibration verification
Applications
- Precision bore and internal diameter measurement
- Quality control and dimensional verification
- Manufacturing and machining operations
- Deep hole and blind bore measurement
Included Accessories
- Storage case
- Setting ring for calibration
- Interchangeable contacts (2-point and 3-point)
- Wrenches for assembly and adjustment
- Instruction manual
Specifications
| Measurement Range | 16-20mm |
| Resolution | 0.0025mm (2-point) / 0.005mm (3-point) |
| Contact Type | 2-point and 3-point interchangeable |
| Measuring Faces | Tungsten carbide on 3-point heads |
| Ratchet Stop | Yes |
| Blind Bore Measuring | Yes (diameter above 12.5mm) |
| Extension Capability | Up to 150mm for deep hole measuring |
| Self-Centering | Yes |
| Included Accessories | Case, setting ring, contacts, wrenches, instructions |
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Starrett 78MXTZ-20 Inside Micrometer
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