Description
Product Overview
Every precision machine shop relies on a single source of truth for its dimensional metrology, and that truth starts with gauge blocks. The Mitutoyo 516-979 Grade 1 Gauge Block Set is an essential calibration and inspection standard, featuring a highly versatile 10-piece metric block array.
- Essential Metric Range: This specialized set includes the core block sizes needed to quickly verify micrometers and calipers across standard measuring ranges (1.00mm, 1.25mm, 1.50mm, 2mm, 3mm, 5mm, 10mm, 15mm, 20mm, and 25mm).
- Grade 1 Accuracy: Manufactured to strict ISO/DIN/JIS Grade 1 tolerances. Grade 1 blocks are classified as an “Inspection Grade” standard, making them the perfect reference tool for verifying shop-floor measuring instruments, setting up sine bars, and calibrating high-accuracy dial comparators.
- Premium Steel Construction: Forged from high-carbon, high-chrome Japanese steel. These blocks undergo specialized heat treatment and artificial aging to guarantee absolute dimensional stability over decades of use, resisting microscopic warping or size changes.
- Exceptional Wringability: Lapped to a mirror-like surface finish, these Mitutoyo blocks possess incredible wringing characteristics, allowing you to stack blocks securely with zero air gaps or false dimensional buildup.
Condition
Used (Good Serviceable Condition).
This gauge block set is in good, fully functional used condition and is ready to be put back to work in a demanding shop environment.
- Cosmetic & Functional State: As genuine shop-floor layout tools, these blocks show typical signs of active service, such as superficial handling marks or light cosmetic wear. However, they remain in highly serviceable condition—the critical lapped measuring faces are smooth, wring together positively, and are fit for reliable calibration tasks.
Brand Information
Mitutoyo Corporation (Japan) is the undisputed global leader in dimensional metrology. Their rectangular gauge blocks are considered the industry benchmark for master toolmakers and quality control inspectors, renowned for their unparalleled metallurgical stability, strict adherence to international accuracy standards, and exceptional long-term wear resistance.
Specifications
| Feature | Specification |
| Brand | Mitutoyo (Japan) |
| Model | 516-979 |
| Type | Rectangular Gauge Block Set |
| Material | Precision Lapped Steel |
| Accuracy Grade | Grade 1 (Inspection Grade) |
| System | Metric (10-Piece Block Set) |
| Included Sizes | 1.00, 1.25, 1.50, 2, 3, 5, 10, 15, 20, & 25mm |
| Condition | Used / Good Serviceable Condition |
Keywords
Mitutoyo 516-979, gauge block set, Grade 1 gauge blocks, Mitutoyo steel gauge blocks, metric block set, jo blocks, slip gauges, micrometer calibration, machinist layout tools, Japanese metrology.
