Riken 150mm Machinist Level JIS B 7511

Description

Product Overview

The Riken 150mm Precision Machinist Level is a premium-grade instrument manufactured to the strict JIS B 7511 standard.

• JIS B 7511: This Japanese Industrial Standard certifies that the level meets the highest requirements for sensitivity and base flatness. Levels of this class are far superior to standard “carpenter’s levels,” designed specifically for leveling high-precision machine tools (lathes, mills, and grinders).
• Construction: It features a heavy cast iron body with a precision-ground V-groove base, allowing it to sit stably on both flat surfaces (machine ways) and cylindrical objects (spindles or shafts).
• Sensitivity: While the exact sensitivity depends on the specific class (Class A or B), Riken levels are famous for their rapid bubble settling and distinct graduation lines, making it easy to detect even the slightest twist or bow in a machine bed.

Condition

Used (Great Condition / Superficial Marks).

This is a Premium Model Riken level in great used condition. The vial is clear and the bubble movement is smooth.

Note on Base: There are some superficial marks on the underside measuring face. These are purely cosmetic and do not affect the flatness or accuracy of the level. The ground surface remains true for precision setup work.

Brand Information

Riken (Riken Keiki) is one of Japan’s premier manufacturers of precision leveling instruments. Alongside brands like Fujishiro and Niigata Seiki, Riken levels are the standard in Japanese machine shops, prized for their ability to hold calibration despite temperature changes.

Specifications

Keywords

Riken level, machinist level, precision level, JIS B 7511, 150mm level, lathe leveling, machine setup tools, Japanese precision tools, spirit level.