Outside micrometers achieving ±1.5 µm digital accuracy (0–25 mm range, exceeding DIN 863's ±4 µm minimum) and digital dial indicators with USB serial SPC output expand MACHALLY's precision measurement line for ISO 9001-certified aerospace, automotive, and medical device facilities. Spans cover 0–25 mm through 75–100 mm; all instruments ship with individual calibration certificates traceable to national metrology standards.
Outside Micrometer Series
The micrometer range covers 0-25mm through 275-300mm spans in both analog and digital configurations. All units feature carbide-tipped measuring faces and a ratchet thimble for consistent measuring force regardless of operator technique.
The spindle is precision-ground and lapped to achieve the 0.6-micrometer flatness specification. Carbide measuring faces provide wear resistance for high-volume inspection workflows where steel faces would degrade over thousands of measurements.
For the surface-finish targets these inspection tools verify on milled and turned parts, see the surface finish improvement guide.
Digital Dial Indicator Line
MACHALLY's digital dial indicator line offers LCD display readouts with USB serial data output, enabling direct connection to SPC software and reducing manual transcription errors in high-volume inspection. Key features across the line include zero reset at any position, one-button metric/inch switching, and preset value function for comparative measurements.
| Specification | Value |
|---|---|
| Display | Digital LCD |
| Data Output | Standard or micro USB serial port |
| Power | CR2032 battery |
| Modes | Absolute and relative; metric/inch switching |
| Functions | Zero at any position, preset value, optional auto-off |
The digital indicator complements the Outside Micrometer for complete dimensional inspection coverage. The micrometer handles precise diameter and thickness measurements; the dial indicator handles runout, flatness, and comparative gauging on fixtures and surface plates.
For first-day inspection workflows on a new CNC setup that pair these instruments with the spindle taper choice, see the CNC tooling setup beginner guide.
Calibration and Traceability
Each instrument ships with an individual calibration certificate traceable to national metrology standards. ISO 13385 defines the dimensional and metrological requirements for measuring equipment such as calipers and micrometers, providing the framework within which instrument manufacturers report accuracy and resolution specifications. ISO 14253 establishes the decision rules used when determining conformance to specification — it specifies how measurement uncertainty must be accounted for when accepting or rejecting a workpiece, which is why traceable calibration certificates are a prerequisite for ISO 9001 and AS9100 audit compliance. This documentation supports manufacturers who require measurement traceability for ISO 9001 audit compliance, AS9100 aerospace quality systems, and IATF 16949 automotive requirements.
Calibration Service
Recalibration service is available with typical turnaround of 5-7 business days. Certificates reference NIST-traceable master standards.
Standards-Compliant Measurement Expansion
New outside micrometers (DIN 863, ±1.5 micrometer digital accuracy) and digital dial indicators (USB serial data output for SPC) provide traceable measurement capability for quality-critical manufacturing. All instruments ship with individual calibration certificates.
