Description
Product Overview
This TC 2.00–2.50mm Gauge Pin Set (TK-2A series) covers a critical range of small-bore reference diameters in 0.01mm increments — 51 individual pins in total — giving you a complete go/no-go and variable inspection solution for tight tolerance bores, reamed holes, drill sizing checks, and fixture alignment work across the 2mm range. Housed in the original fitted case with individual labelled sockets, every pin is clearly stamped with its KM-prefix designation and nominal diameter, so there’s no fumbling on the bench during inspection.
- 0.01mm increment coverage from 2.00–2.50mm — In precision toolroom inspection, the ability to step through a bore in single hundredth-of-a-millimetre increments lets you determine actual hole size, not just pass/fail. That’s the difference between diagnosing a worn reamer and guessing at it.
- Ceramic or hardened precision-ground pin construction — The white, cylindrical form of these pins is consistent with high-grade ceramic gauge pins, which offer superior wear resistance over tool-steel equivalents at these small diameters. Ceramic won’t burr, won’t corrode, and holds its ground diameter far longer under repeated insertion — critical when you’re working sub-3mm bores where even a few microns of wear invalidates the gauge.
- Individual labelled sockets in a fitted case — A gauge pin set is only as useful as its organisation. Each pin returns to a dedicated, marked socket, eliminating mix-up between adjacent sizes (2.23 vs 2.24 is not a mistake you want to make mid-run). The foam-lined lid adds protection against impact during storage or transport.
- Compatibility — These pins are used as hand-held or fixture-mounted reference gauges and require no additional tooling to use. They’re compatible with any standard go/no-go inspection workflow. A calibrated ring gauge set or setting master is recommended for periodic verification of individual pin accuracy.
- Ideal for — Checking reamed holes and drilled bores in precision components; verifying CNC machining centre output on small-diameter features; sizing jig-bush and dowel-pin hole fits; inspecting collet bores and spindle tapers for concentricity fixtures; and toolroom first-article inspection where a CMM is unavailable or impractical.
Condition
Used (Good Condition / Partial Sealed, Remainder Inspected)
The majority of pins in this set remain factory-sealed inside their individual plastic containers — unused and in as-new condition for those sizes. A portion of the set has been used, but upon inspection those pins show no visible damage, chipping, burring, or surface degradation. The ground cylindrical surfaces are clean and intact, with no scoring or pitting that would introduce error into a bore measurement. The case itself is in solid working order — all sockets are present, the labelling is legible, and the foam lid lining is undamaged. As with any used gauge pin set, best practice is to verify individual pins against a calibrated ring gauge or optical comparator before committing them to tight-tolerance first-article work. For general shop use, drill sizing, fixture work, and go/no-go checking, this set is ready to go straight off the bench.
Included:
- 1 x TC TK-2A Gauge Pin Set, 2.00–2.50mm, 0.01mm increments (51 pins)
- 1 x Original fitted wooden storage case with individual labelled sockets
- Individual pin containers (most factory-sealed)
Not included: Calibration certificate, setting ring gauges, inspection report.
Brand Information
The TK-series gauge pin sets bearing the KM-prefix pin markings are consistent with Eastern European or Asian precision metrology manufacture, positioned in the mid-tier of the global gauge pin market — comparable in construction philosophy to sets offered under generic toolroom supply brands across Europe and Japan. At the small-diameter ceramic gauge pin level, construction quality and ground accuracy are more meaningful buying criteria than brand pedigree, and this set’s ceramic-construction pins and systematic 0.01mm increment coverage reflect a genuinely toolroom-grade specification. Buyers accustomed to Deltronic, Meyer, or Glastonbury-Southern gauge pin sets will find the format and intent directly comparable, with the caveat that independent calibration verification is recommended for critical tolerance work on used sets from any manufacturer.
Specifications
| Feature | Specification |
|---|---|
| Brand | TC |
| Model / Series | TK-2A |
| Type | Gauge Pin Set (Cylindrical Reference Pins) |
| Measuring Range | 2.00mm – 2.50mm |
| Graduation / Increment | 0.01mm (every hundredth of a millimetre) |
| Number of Pins | 51 pins |
| Pin Construction | Ceramic / hardened precision-ground (white cylindrical body) |
| Pin Marking | KM-prefix stamp with nominal diameter on each pin |
| Case / Storage | Original fitted wooden case with individual labelled sockets and foam-lined lid |
| Country of Origin | Not confirmed — verify with seller if critical |
| Condition | Used (Good Condition) — majority of pins factory-sealed; used pins undamaged |
| Included | 51 x gauge pins, original fitted case, individual pin containers |
| Not Included | Calibration certificate, setting rings, inspection documentation |
Keywords
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