Riken Precision Sine Bar – Hardened Steel – 100 mm Length (Approx.)
This Riken Precision Sine Bar is designed for accurate angular setup using gauge blocks. The hardened steel body and precision‑ground faces provide stable, repeatable geometry for grinding, inspection, jig building, and toolmaking.
The sine bar includes two cylindrical reference rolls and a rigid body with central clearance holes. This compact size is ideal for small fixtures, tight setups, and surface‑grinder work where a full‑size sine bar is too large.
Riken is known for producing reliable Japanese metrology tools with consistent accuracy and workshop durability.
Brand Information
Riken (Japan) A respected manufacturer of precision measuring tools used in machining, toolmaking, and inspection environments.
Features and Performance
- Precision sine bar — For accurate angle setup using gauge blocks.
- Hardened steel construction — Stable and wear‑resistant.
- Ground reference faces — Ensures consistent geometry.
- Compact size — Ideal for small fixtures and surface‑grinder setups.
- Japanese build quality — Reliable and workshop‑ready.
Included
• 1 × Riken Precision Sine Bar
• Wooden storage case (as shown in photos)
Specifications
(Based on measurements shown in photos — adjust if needed)
| Feature | Specification |
|---|---|
| Brand | Riken |
| Type | Precision Sine Bar |
| Distance between rollers | ~100 mm |
| Height | ~35 mm |
| Body Width | ~20 mm |
| Body Length | ~140 mm overall (including rolls) |
| Construction | Hardened steel |
| Included Items | Sine bar + wooden case |
| Country of Origin | Japan |
Keywords
Riken sine bar; precision sine bar; Japanese sine bar; angle setup tool; machinist sine bar; surface grinder sine bar; metrology sine tool.
