Description
Product Overview
A matched pair of Japanese-made 50mm vee blocks — the kind of ground reference tooling that earns its place on the bench for decades. These double-sided blocks feature a wide V-groove on one face and two narrower V-grooves on the opposite face, giving you genuine versatility when holding round stock for inspection, grinding, or layout work. Matched pairs matter: both blocks have been ground together to ensure they present the workpiece at the same height and angle, which is the whole point when you’re checking runout or supporting a shaft across two points.
- Double-sided V-groove configuration — One wide V and two narrow V’s per block means you can accommodate a broad range of round stock diameters without swapping tooling. Whether you’re supporting a 6mm pin or a 40mm shaft, there’s a groove geometry that’ll hold it consistently and without rocking.
- Matched pair, ground together — Both blocks in the set are matched, meaning the V-groove centrelines are at the same height from the base. This is critical when supporting a long shaft across two blocks and checking runout with a dial indicator — mismatched heights introduce false tilt and kill your measurement confidence.
- Japanese manufacture — Ground reference tooling from Japan carries a well-earned reputation for tight tolerancing and consistent hardness. The precision ground surfaces on these blocks are the working datum; Japanese tooling at this level typically holds geometry you can rely on without chasing errors back to the blocks themselves.
- Hardened steel construction — Vee blocks cop a lot of incidental abuse on the bench. Hardened construction resists nicking and wear on the V-groove edges and base, which is where measurement integrity lives. Soft blocks lose geometry fast; hardened blocks stay honest.
- Ideal for — Checking shaft runout on a surface plate, holding round stock for cylindrical grinding setup, supporting turned components during layout and scribing, centering work under a drill press or on a mill table, and inspecting taper on turned parts with a DTI.
Condition
Used (Good Condition / Matching Pair, Original Box)
Both blocks present well for used tooling. The ground reference surfaces — the base and the V-groove faces — retain their flatness and show no visible nicking, gouging, or rocking on a surface plate. The natural patina of use is present across the block bodies, consistent with workshop handling, but this is cosmetic and does not affect the working surfaces. The blocks are confirmed as a matched pair and have been stored in their original box, which has helped protect the ground faces from bench damage. As with any used precision tooling, the conscientious buyer should verify the pair against a known-good surface plate and check that both V centrelines present at the same height — a simple check with a test bar and DTI takes two minutes and gives you full confidence. No anomalies were noted during inspection, but independent verification is always recommended before committing blocks to critical inspection work.
Included:
- 2 x Matched Vee Blocks, 50mm, Double-sided (Wide V / Twin Narrow V), Japanese Manufacture
- Original box / packaging
Not included: Clamping straps or clamps (if vee block clamps are required for your application, these will need to be sourced separately).
Brand Information
These vee blocks are Japanese-manufactured precision tooling — the same country of origin as Mitutoyo, Mori Seiki, and a long lineage of ground reference tooling that has set the benchmark for the global metrology industry. Japanese ground tooling at this level is produced under strict JIS (Japanese Industrial Standards) protocols, with surface grinding and hardening processes that consistently deliver toolroom-grade geometry. While the specific manufacturer’s name is not marked on the blocks, Japanese-origin ground tooling of this type sits comfortably alongside recognised names in the precision workholding and inspection market and represents a reliable choice for both professional toolrooms and serious home shop operators.
Specifications
| Feature | Specification |
|---|---|
| Brand | Japanese Manufacture (Unbranded / OEM) |
| Type | Vee Block Pair (Matched) |
| Size | 50mm |
| V-Groove Configuration | Double-sided — 1x Wide V-groove / 2x Narrow V-grooves |
| Quantity | Matched Pair (2 blocks) |
| Material / Construction | Hardened Steel, Precision Ground |
| Country of Origin | Japan |
| Condition | Used — Good Condition |
| Included Items | Matched pair of vee blocks, original box/packaging |
| Not Included | Clamping straps / clamps |
Keywords
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