Description
Product Overview
A precision setting ring is one of those toolroom staples that earns its keep every single day — and this SHS 35.9985 mm setting ring is a textbook example of why. Ground and lapped to a nominal 36 mm bore, this hardened steel ring gauge is used to set and verify bore measuring instruments to a known reference diameter, taking the guesswork out of internal measurement. Whether you’re qualifying a new bore mic, zeroing a plug gauge, or verifying a bore comparator before a production run, a traceable setting ring is the ground reference you need to trust your readings.
- Ground and lapped bore to 35.9985 mm actual size — the stamped actual size matters more than the nominal. This ring has been measured and engraved at 35.9985 mm, meaning you’re setting your instrument to a known, specific diameter rather than assuming nominal — critical when you’re working to tight tolerances and every tenth counts.
- Hardened steel construction — the bore surface is hardened to resist wear from repeated gauge insertion. A soft ring gauge deteriorates quickly in production use; a hardened ring holds its geometry over thousands of insertions, maintaining its value as a reliable reference standard.
- Compact, stable ring form — the substantial wall thickness and disc geometry give this ring excellent dimensional stability. It won’t distort under handling or temperature fluctuation the way a thin-walled component might, which matters when you’re chasing single-figure micron accuracy.
- Compatibility — suits bore micrometers, bore comparators, air gauges, and plug gauges in the 36 mm range. No additional accessories are required to use this as a setting standard; simply clean the bore, insert your instrument, and zero.
- Ideal for — setting bore micrometers prior to measuring engine bores, gearbox housings, and hydraulic cylinder bores; qualifying bore comparators before a production run; verifying plug gauge wear; and incoming inspection of machined bores on the bench or CMM room.
Condition
(Used — Good Condition / Toolroom Surplus)
The bore surface — the functional datum of this gauge — presents well, with no visible scoring, pitting, or fretting evident on the lapped internal diameter. The outer diameter shows the expected patina and minor handling marks consistent with toolroom use and storage, but these surfaces are cosmetic only and have no bearing on the gauge’s working accuracy. The engraved actual size marking of 35.9985 mm is clearly legible. The date code stamped “95-11” indicates manufacture or calibration in November 1995, which is consistent with this type of long-life hardened gauge standard. As with any used setting ring, we recommend verifying the bore diameter against a calibrated reference or CMM before committing it to critical inspection work — this is standard practice with any second-hand metrology standard regardless of apparent condition. For general bore mic setting and comparator zeroing in a job shop or home machining environment, this ring is fit for purpose as presented.
Included:
- 1 x SHS Setting Ring — 35.9985 mm actual bore diameter (nominal 36 mm)
- 1 x Original red presentation / storage box
- Original wax paper protective wrap
Not included: Calibration certificate (none supplied — recalibration recommended if traceability is required for formal QA inspection).
Brand Information
SHS is a Japanese precision metrology manufacturer with a strong reputation in the toolroom and quality control sectors, producing hardened gauge rings, plug gauges, and setting masters to exacting JIS standards. Japanese-manufactured gauging of this type sits comfortably alongside recognised names such as Mitutoyo and Etalon in terms of manufacturing discipline and material quality — the consistent use of hardened steel, precise lapping, and engraved actual-size markings are hallmarks of serious metrology production. SHS gauges are well regarded in Australian toolrooms and inspection departments as reliable, durable setting standards built to outlast the instruments they serve.
Specifications
| Feature | Specification |
|---|---|
| Brand | SHS |
| Type | Setting Ring Gauge / Master Ring |
| Nominal Diameter | 36 mm |
| Actual (Engraved) Bore Diameter | 35.9985 mm |
| Material / Construction | Hardened steel, ground and lapped bore |
| Date Code | 95-11 (November 1995) |
| Country of Origin | Japan |
| Condition | Used — Good Condition |
| Included Items | Setting ring, original box, wax paper wrap |
| Not Included | Calibration certificate |
Keywords
SHS setting ring, SHS ring gauge, setting ring 36mm, master ring gauge 36mm, bore mic setting ring, bore comparator master, hardened ring gauge Australia, toolroom ring gauge, internal gauge setting standard, precision bore gauge master, Japanese ring gauge, metrology setting ring
