Description
Product Overview
These Mitutoyo long-jaw vernier calipers are a specialist measuring tool built for reaching into deep recesses, slots, and step features that standard calipers simply can’t access. With a 150mm measuring range and 200mm jaw depth, they’re purpose-made for the kind of dimensioning work where jaw length is the limiting factor — think deep bores, long housings, or recessed shoulders on turned components. Japanese-made, vernier-graduated, and presented in their original Mitutoyo wooden case, these are a genuine toolroom-grade instrument at a used price.
- 200mm jaw length — the core reason to own these: Standard calipers top out around 40–50mm of jaw depth. At 200mm, these reach features inaccessible to conventional tools without resorting to a depth mic or inside mic setup. For machinists measuring deep bores, long spigots, or recessed grooves on turned components, that jaw reach removes a genuine limitation.
- Vernier graduation — no batteries, no drift: Vernier-read instruments have no electronics to fail, no zeroing errors from a dead cell, and no concerns about capacitive scale contamination from cutting fluid. On the shop floor, that means consistent, repeatable readings that don’t require babysitting. The graduation on these is 0.05mm — adequate for the vast majority of fitting and turning work.
- 150mm measuring range with 0.05mm resolution: The 150mm capacity covers most general turning and milling work within the reach of the jaws. At 0.05mm (2 thou) vernier resolution, you’re reading to a level appropriate for checking fits, verifying stock dimensions, and confirming machined features before final finishing passes.
- Original Mitutoyo wooden case with documentation: These come in their original fitted wooden case — not a generic foam-lined box. The inclusion of original papers and a calibration certificate means you’re getting a documented instrument, not an unknown quantity. For any workshop operating under a quality system, that paperwork has real value.
- Ideal for: Measuring deep bore depths and recessed shoulder positions on turned components; checking spigot lengths and stepped shaft dimensions on the lathe; verifying deep slot widths on milling work; layout and inspection on fabricated components with deep internal features; any application where jaw reach — not measuring range — is the bottleneck.
Condition
Used (Good Condition / Functional Toolroom Instrument)
The measuring surfaces — both the jaw faces and the beam — present well, with no visible nicks, chips, or raised burrs that would affect contact or reading accuracy. The slide action is smooth and consistent across the full 150mm range with no detectable slop or binding. The vernier scale is clean and legible under normal workshop lighting. The beam shows the expected light surface patina consistent with careful bench use — this is a used instrument and it looks like one, but there’s nothing here that compromises function. The jaw faces, which are the surfaces that actually matter for accuracy, are in good order. As with any used precision instrument, we recommend verifying zero with the jaws closed and confirming linearity against a known standard — a set of gauge blocks or a calibrated reference piece — before putting it into production use. The included calibration certificate provides a documented reference point for that verification.Included:
- 1 x Mitutoyo Long-Jaw Vernier Caliper 150mm / 200mm Jaw — 811-05.046 NT15-15
- 1 x Original Mitutoyo wooden storage case
- 1 x Original papers / manual
- 1 x Calibration certificate
Not included:
- No additional accessories noted as missing. Kit appears complete as originally supplied.
Brand Information
Mitutoyo is the benchmark name in precision metrology — a Japanese manufacturer with over 90 years of production history and a product range that spans vernier instruments through to CMM systems and laser measurement. In the caliper and hand-tool segment, Mitutoyo sits at the top of the market alongside Starrett and Tesa, and their instruments are the de facto standard in toolrooms, quality labs, and trade schools across Australia. Japanese manufacturing origin is a genuine quality indicator here — Mitutoyo’s ground references, scale engravings, and jaw hardening are all held to tolerances that cheaper offshore alternatives simply don’t match.
Specifications
| Feature | Specification |
|---|---|
| Brand | Mitutoyo |
| Model / Part Number | 811-05.046 NT15-15 (as stated on box — exact catalogue reference unconfirmed; verify against Mitutoyo AU if required) |
| Type | Long-Jaw / Neck Vernier Caliper |
| Measuring Range | 0–150mm |
| Jaw Length (Depth Reach) | 200mm |
| Graduation / Resolution | 0.05mm (vernier) |
| Reading Type | Vernier (analogue — no digital electronics) |
| Material / Construction | Hardened stainless steel beam and jaws |
| Country of Origin | Japan |
| Condition | Used — Good Condition |
| Included Items | Caliper, original wooden case, papers/manual, calibration certificate |
| Not Included | No items noted as missing |
Keywords
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