Description
Product Overview
Grinding, drilling, or machining a precise angle into a workpiece is where a sine vice earns its place in the toolroom. Rather than trying to shim a standard vice or bash a protractor setup into submission, a sine vice pivots on a precisely-built base so you can set any compound angle by slipping a stack of gauge blocks under the hinged jaw body — the same principle as a sine bar, applied to a workholding vice. The ETO Sine Vice is a classic Japanese-built toolroom piece at a compact 50 × 70mm size, perfect for die work, tool and cutter grinding, fixture machining, and any precision angle-holding job where accuracy matters more than brute size.
- Sine-principle angle setting — slip gauge blocks under the hinged upper jaw body against a reference roller/stop to set exact angles via trigonometry (angle = arcsin(gauge block stack height ÷ sine length)).
- Compact 50 × 70mm jaw capacity — ideal for small precision parts: punches, die components, form tools, inserts, and fixturing blocks.
- Ground and hardened reference surfaces on the base, sides, and jaw faces — use the vice itself as a setup reference on an angle plate or magnetic chuck.
- Knurled manual clamp handle for tool-free adjustment, with a cross-bar tommy handle for final clamping force.
- Ideal for surface grinder work on angled forms, die and punch making, tool cutter sharpening, precision drill-press work, and any job where the angle of cut or grind is critical.
Condition
Used (Good Working Condition / Honest Shop Patina).
Straight from the photo: this ETO has lived the toolroom life and shows it. Ground surfaces (jaw faces, base, sides of the jaw body) show their original finish with light scoring and scratches consistent with genuine shop use — nothing that compromises the precision of the reference surfaces for the job. The pivot mechanism is sound and the upper body hinges smoothly on its base for angle setting. The clamp screw operates correctly with its knurled knob and cross-bar tommy. Some light surface patina and oxidation on the non-critical faces is typical for a vice of this vintage. The tapped holes on the jaw face are clean and undamaged. Before use, verify the sine-length dimension on your unit and check the pivot for any play that might affect your angle accuracy — as with any used precision workholding, a quick check against a known angle (or a verified sine bar setup) is recommended.
Included:
- 1 x ETO Sine Vice (50 × 70mm)
- Integrated clamp screw with knurled knob and tommy bar
Brand Information
ETO is a respected Japanese toolroom equipment maker, part of the broader group of smaller specialist manufacturers who built Japan’s reputation for precision workholding and jig grinding fixtures. ETO sine vices turn up frequently in die shops, tool and cutter grinding rooms, and jig boring departments both in Japan and overseas — they’re the kind of specialist tool that’s rarely sold new in Australia but has a loyal following among toolmakers who’ve used them. A sine vice of this calibre sits alongside the work of Palmgren, Toyo, and other respected toolroom vice makers for precision angle work.
Specifications
| Feature | Specification |
|---|---|
| Brand | ETO |
| Type | Sine Vice (Precision Angle-Setting Vice) |
| Jaw Width | 70 mm |
| Jaw Opening / Capacity | 50 mm |
| Operating Principle | Sine-bar geometry — angle set via gauge block stack under hinged jaw body |
| Jaw Face | Ground and tapped for accessory mounting |
| Base / Sides | Ground reference surfaces |
| Clamping | Manual screw with knurled knob and tommy bar |
| Country of Origin | Japan |
| Condition | Used — Good Working Order |
| Included | Vice with integrated clamp hardware |
Keywords
ETO sine vice, Japanese sine vice, precision sine vice, toolroom sine vice, 50mm sine vice, angle setting vice, grinding sine vice, tool and die sine vice, precision angle vice, sine plate vice, ETO precision vice, toolmaker sine vice
