Description
Product Overview
This SK gauge pin set covers the 8.55–11.45 mm range in 0.05 mm increments, giving you a comprehensive bank of hardened steel reference pins for hole checking, go/no-go inspection, fixture setup, and precision bore verification on the bench or at the machine. Housed in a fitted wooden case with individual labelled holders, every pin is immediately identifiable and protected — exactly how a toolroom set should be stored.
- 0.05 mm increment stepping across the full range — with 58 pins spanning 8.55 mm to 11.45 mm, you can bracket any target bore to within 0.05 mm without interpolating. That resolution is the difference between a confident pass/fail call and a guess on a tight-tolerance hole.
- Hardened and ground pin construction — gauge pins are only as good as their cylindricity and surface finish. Ground steel pins hold their diameter along the working length, so you’re checking the bore, not measuring the pin’s own taper or barrel shape.
- Individual labelled caps on every pin — each pin sits in a captive plastic cap engraved with its nominal size. Pull the pin, use it, return it to its slot without fumbling through a loose pile. In a production environment, that organisation prevents mix-ups and keeps inspection repeatable.
- Self-contained wooden storage case — the hinged timber case with foam-lined lid keeps the set together, protects the ground surfaces from contact damage, and makes the set portable between the bench and the machine. No improvised storage means no lost pins and no mystery scratches on precision surfaces.
- Ideal for — checking reamed or bored holes to tolerance in jig boring, verifying drill and reamer sizing before committing to a final pass, setting up go/no-go gauging stations on turned or milled components, qualifying fixture hole positions, and checking bearing housings or bush fits in fitter/turner work.
Condition
(Used — Like New / Lightly Used, Majority of Pins Unused)
The seller confirms that only a small number of pins from this set have seen use, with the remainder in original, unused condition. Visually, the pins present extremely well — ground surfaces show no scoring, pitting, or corrosion, and the plastic size caps are intact and legible across the set. The wooden case is sound, the foam insert is undamaged, and all pin slots are populated. As with any used gauge pin set being put into a calibrated inspection role, it is good practice to verify the working pins against a calibrated ring gauge or with a bench micrometer before relying on them for first-article or tolerance-critical inspection. For toolroom setup work — checking clearance fits, qualifying reamers, or setting fixtures — the set is ready to use as-is.
Included:
- 1 x SK Gauge Pin Set, 8.55–11.45 mm, 0.05 mm increments (58 pins)
- Original hinged wooden storage case with fitted holder tray
- Individual labelled plastic size caps on all pins
Not included: Calibration certificate (not supplied with this used set — recommend verification against a traceable ring gauge if use in formal inspection is intended).
Brand Information
SK (Shin Nippon Koki / S-K brand, Japan) is a well-regarded Japanese precision tool manufacturer producing metrology and machine tool accessories to the standard expected of Japanese industrial tooling — consistent geometry, quality hardened steel, and reliable size labelling. SK sits in the same trusted tier as Niigata and RSK for gauge and reference tooling, below the premium Mitutoyo and Tesa bracket but well above generic import product. Japanese-made gauge pins are a known quantity in Australian toolrooms: the steel quality and grinding standards are dependable, and the sets hold up well in daily shop use.
Specifications
| Feature | Specification |
|---|---|
| Brand | SK (Japan) |
| Type | Gauge Pin Set (Plug / Pin Gauges) |
| Measuring Range | 8.55 mm – 11.45 mm |
| Increment / Step | 0.05 mm |
| Number of Pins | 58 pins |
| Pin Construction | Hardened and ground steel |
| Identification | Individual labelled plastic size caps, engraved nominal size |
| Case / Storage | Original hinged wooden case with fitted holder tray and foam-lined lid |
| Country of Origin | Japan |
| Condition | Used — Like New (majority of pins unused, lightly used examples in good condition) |
| Included Items | 58 x gauge pins, original wooden case |
| Not Included | Calibration certificate |
Keywords
SK gauge pin set, SK plug gauge set, gauge pin set 8.55–11.45mm, metric pin gauge set, hardened gauge pins Australia, toolroom pin gauges, go no-go gauge pins, bore checking pins, precision pin gauges metric, hole gauge set machinist, Japanese gauge pins, inspection pin set CNC
