Description
Condition
Used (Excellent / Complete Set).
This is a beautiful, complete set of gauge blocks in excellent used condition. Of the 103 pieces, many appear virtually unused, while others show only minor signs of careful service. All blocks have been inspected, are free from corrosion, and are currently protected with a film of lubrication to preserve their surface finish. The original wooden storage case is also in great condition, with the latches and hinges working perfectly to protect this heavy set.
Product Overview
The Mitutoyo 516-943 is a comprehensive Metric Rectangular Gauge Block Set manufactured to Grade 1 (Inspection Grade) standards.
- 103-Piece Versatility: This is one of the most complete sets available. With 103 blocks, you have an incredible range of combinations, allowing you to “stack” or “wring” blocks to build almost any precise dimension required, often in increments as small as 0.005mm.
- Grade 1 Accuracy: Unlike the “Grade 2” workshop blocks, Grade 1 is significantly more precise. It is typically reserved for the Inspection Room to calibrate other measuring instruments (like micrometers, calipers, and snap gauges) or for setting up high-precision sine bars and jigs.
- Material: Made from High Carbon High Chrome Steel, heat-treated and aged to ensure dimensional stability over time. They feature a high-lapping finish for superior wringing characteristics.
Brand Information
Mitutoyo Corporation (est. 1934) is the global authority in dimensional metrology. A 103-piece Mitutoyo set is widely considered a “lifetime investment” for a machine shop. The steel used in the 516 series is specifically chosen for its high resistance to wear and its coefficient of thermal expansion, which closely matches common workpiece materials like steel and iron.
Specifications
| Feature | Specification |
| Model | 516-943 |
| Set Type | Metric Rectangular |
| Grade | Grade 1 (Inspection Grade) |
| Block Count | 103 Pieces |
| Material | High Carbon High Chrome Steel |
| Standard | JIS / ISO |
| Included | 103 Blocks, Wooden Case |
Keywords
Mitutoyo, 516-943, gauge block set, slip gauges, 103 piece gauge blocks, Grade 1 blocks, inspection grade, metrology standards, machinist tools, precision calibration.









