Description
Condition
Used (Working Order / Damaged Lens).
This precision protractor is in used, “rough” cosmetic condition. Important Condition Note: During previous transport, a loose component struck the glass face, resulting in a crack/damage to the cover lens. While this makes the reading window look a bit rough, the scale underneath is still legible, and the tool remains fully functional for workshop use. The mechanical action (blade locking and fine adjustment) operates correctly.
Product Overview
The Marui Keiki MP-101 is a high-precision Universal Bevel Protractor designed for accurate angle measurement and layout work. Unlike standard protractors, this “Micro” series typically features a fine-adjustment mechanism and high-resolution graduation, allowing machinists to measure angles to a fraction of a degree.
It is built from hardened stainless steel for durability and rust resistance. The blade can be slid and locked at any position along its length, making it versatile for checking dovetails, machine slides, or setting up workpieces on a milling machine. Despite the cosmetic damage to the glass, the underlying accuracy of the steel assembly remains a testament to Japanese manufacturing.
Brand Information
Marui Keiki Co., Ltd. is a respected Japanese manufacturer of precision measuring instruments, particularly known for their bevel protractors and geometric gauges. Their tools are often found in heavy industry and toolrooms across Japan, rivalling Mitutoyo in build quality and material hardness.
Specifications
| Feature | Specification |
| Brand | Marui Keiki (Japan) |
| Model | MP-101 |
| Type | Micro Protractor / Bevel Protractor |
| Material | Hardened Stainless Steel |
| Adjustment | Fine Adjustment Knob |
| Condition | Rough / Cracked Glass |
| Included | Protractor Only |
Keywords
Marui Keiki, MP-101, bevel protractor, machinist protractor, angle gauge, japanese tools, layout tools, engineering square, angle finder.
