Description
Condition
New / New Old Stock (NOS).
This item is brand new and presents as New Old Stock. It is unused and pristine, preserved in its original manufacturer packaging. The magnetic base and articulating arm are free from wear, and the switch mechanism operates with crisp, It includes the original box and documentation.
Product Overview
The Niigata Seiki SK WMB-80G is a premium “Central Lock” style magnetic base designed for professional machinists who require rigidity and speed in their setup. Unlike standard two-post bases, this model features a mechanical central locking mechanism that tightens all three articulating joints simultaneously with a single turn of the main knob. This allows for rapid, flexible positioning of the indicator without the hassle of tightening multiple wing nuts. The base is equipped with a powerful 800N (approx. 80kgf) magnetic hold, ensuring rock-solid stability on cast iron machine tables or lathe beds. The clamp head is highly versatile, accepting standard 8mm stems, 6mm stems, and dovetail indicators, and includes a fine adjustment dial for bringing the needle precisely to zero without moving the entire stand. The arms are constructed from anodised aluminium, providing a balance of strength and reduced weight for easier handling.
Brand Information
Niigata Seiki (SK) is a distinguished Japanese measuring tool manufacturer established in 1960. Based in the Niigata prefecture—a region with a rich history in metalworking—the company is renowned for producing high-quality industrial tools that meet strict Japanese Industrial Standards (JIS). The “SK” brand is a staple in Japanese machine shops, trusted for its reliability and precision.4 The WMB series represents their higher-tier offering in work-holding solutions, designed to provide superior locking force and ease of use compared to generic magnetic stands.
Specifications
| Feature | Specification |
| Make | Niigata Seiki (SK) |
| Model | WMB-80G |
| Lock Type | Mechanical Central Lock (Single Knob) |
| Holding Force | 800N (Approx. 80kgf) |
| Stem Compatibility | Ø6mm, Ø8mm, Dovetail |
| Fine Adjustment | Yes (On Clamp) |
| Arm Material | Anodised Aluminium |
| Base Dimensions | 50mm x 60mm x 55mm |
| Total Height (Extended) | 340mm |
| Magnet Type | Switchable On/Off (Ferrite) |
| Weight | Approx. 1.38kg |
Keywords
Niigata Seiki, SK tools, WMB-80G, magnetic base, central lock base, dial indicator stand, one-lock magnetic stand, machinist tools, 80kg magnet, fine adjustment base, metrology setup, Japanese tooling.






