Description
Product Overview
The Mitutoyo 573-105-20 is a 150mm Absolute Digimatic Digital Point Caliper — a specialist variant of the industry-standard digital caliper, fitted with hardened, pointed jaws designed to measure into grooves, keyways, undercuts, and narrow-walled features that conventional flat-jaw calipers simply can’t access. Built on Mitutoyo’s proven ABS (Absolute) encoder system, this is a proper toolroom instrument, not a bench curiosity.
- Absolute Encoder System (ABS) — no re-zeroing after power off: Unlike incremental encoders that lose position when the battery dies or the caliper is switched off, Mitutoyo’s ABS system retains the true zero reference at all times. On the shop floor, this means you pick it up, open the jaws, and read — no chasing a floating zero mid-job.
- 0.01mm Resolution with ±0.03mm Accuracy: At this resolution and accuracy class, the instrument is suited to production measurement and quality checks where a vernier would be too slow and a CMM would be overkill. For checking turned diameters, groove widths, and feature-to-feature spacing to a few thou, it performs reliably within its stated specification.
- Hardened Pointed Jaws for Internal and External Narrow Features: The defining feature of the 573-series is the needle-point jaw geometry. These jaws reach into 1.5mm-wide grooves, circlip grooves, keyways, centre punch marks, and scribed layout lines — measurements that are impossible or inaccurate with standard caliper jaws. The jaw tips are carbide-tipped for wear resistance, which matters when you’re probing hardened steel features repeatedly.
- Compatibility / Accessories: Reads in both metric (mm) and imperial (inch). Output via Mitutoyo’s SPC data port — compatible with the Mitutoyo Digimatic data logger, U-WAVE wireless unit, or Mitutoyo IT-016U USB interface cable for direct measurement logging into SPC software or a spreadsheet. No additional accessories are required for standalone bench use.
- Ideal For: Measuring circlip groove widths on turned shafts, checking keyway widths on milled components, layout work from scribed lines, measuring narrow relief grooves, locating centre-punch marks during part setup, and inspecting undercut features on turned and ground components.
Condition
Used (Good Condition / Pre-owned, Functional)
The caliper is in good used condition and functions as intended. The ABS encoder operates correctly, the jaw slide moves smoothly along the beam without detectable slop or binding, and the digital display reads clearly. The pointed jaw tips — the most critical wear surface on this instrument — show no visible rounding or damage, which is the main concern with point-type calipers that have seen service on hardened components. The beam and jaw body carry the expected light patina of workshop use: minor handling marks and surface micro-scratches consistent with normal toolroom service. There are no chips, cracks, or damage to the jaw tips or beam ground surface. As with any pre-owned precision instrument, verification against a known standard prior to critical production use is recommended — zero the jaws together, confirm the display reads 0.00mm, and check against a reference piece of known dimension if tolerances are tight. The included original Mitutoyo packaging and documentation confirm this is a genuine instrument, not a grey-market substitute.
Included
- 1 x Mitutoyo 573-105-20 150mm Absolute Digimatic Digital Point Caliper
- 1 x Original Mitutoyo plastic carry case
- 1 x Mitutoyo instruction / documentation papers
Not Included
- SPC data cable / USB interface (optional accessory, sold separately)
- Replacement battery (CR2032 — standard, readily available)
Brand Information
Mitutoyo Corporation is a Japanese metrology manufacturer founded in 1934 and widely regarded as the benchmark against which other precision measuring instrument brands are judged. Manufactured in Japan, Mitutoyo instruments are specified by toolrooms, quality departments, and calibration laboratories globally — sitting in the same tier as Mahr, Tesa, and Starrett for precision, traceability, and long-term calibration stability. Their Digimatic ABS series in particular has become the de facto standard for workshop digital measurement in Australian manufacturing and trade environments, backed by a local service and calibration network.
Specifications
| Feature | Specification |
|---|---|
| Brand | Mitutoyo |
| Model / Part Number | 573-105-20 |
| Type | Digital Point Caliper (Needle-Point Jaw) |
| Series | Absolute Digimatic (ABS) |
| Measuring Range | 0 – 150mm (0 – 6 inch) |
| Resolution | 0.01mm / 0.0005 inch |
| Accuracy | ±0.03mm |
| Jaw Tip Material | Carbide-tipped hardened steel point jaws |
| Encoder Type | Mitutoyo ABS (Absolute) — retains zero on power-off |
| Display | LCD Digital Digimatic readout |
| Output | Mitutoyo SPC data port (compatible with Digimatic data loggers and U-WAVE) |
| Battery | CR2032 lithium coin cell |
| Units | Metric (mm) and Imperial (inch) switchable |
| Country of Origin | Japan |
| Condition | Used (Good Condition) |
| Included Items | Caliper, original Mitutoyo carry case, documentation / papers |
| Not Included | SPC data cable, replacement battery |
Keywords
Mitutoyo 573-105-20, Mitutoyo digital point caliper, Mitutoyo Digimatic caliper, point caliper 150mm, needle jaw caliper, ABS absolute caliper, digital caliper groove measurement, Mitutoyo SPC caliper, toolroom caliper Australia, keyway measurement caliper, digital vernier caliper 150mm, precision measuring tools Australia
