The Mitutoyo mechanical disc micrometer is designed to measure the root tangent length of spur gears and helical gears within +/- 0.0002”. Available in inch and metric units.
Features & Benefits
The Mitutoyo mechanical disc micrometer uses flat discs made with hardened steel in our own Japanese facilities to measure lengths of spur and helical gears. The flatness and thinness of the discs allow for reliable measurements in tight spaces. A ratchet-stop mechanism provides uniform pressure on a workpiece for precise, repeatable measurements and eliminates over-speed error.
- Available in Metric and Inch models
- Some metric models have measuring surfaces constructed of carbide to reduce wear
- Ratchet mechanism provides an audible click to ensure measurement is performed with constant force
- Knurled friction thimbles provide quick adjustments even when wearing gloves
- Satin chrome finish on the sleeve and laser etched measurements on thimble for easier reading
- Frame has a baked enamel finish for durability and longer lifespan
- Supplied in fitted plastic case
SERIES 123 Technical Data
| Technology: | Mechanical |
|---|---|
| SPC Output: | No |
| Ratchet/Thimble: | Ratchet Stop |
Product List
| Order No.: | Product Image: | Units: | Range: | Accuracy: | Mass: | Graduation: | Flatness: | Parallelism: | Disk Diameter: |
|---|---|---|---|---|---|---|---|---|---|
| 123-101 | - | Metric | 0-25mm | ±4µm | 200g | 0.01mm | 1µm | 4µm or less | 20 ømm |
| 123-102 | - | Metric | 25-50mm | ±4µm | 250g | 0.01mm | 1µm | 4µm or less | 20 ømm |
| 123-103 |  |
Metric | 50-75mm | ±6µm | 300g | 0.01mm | 1µm | 6µm or less | 20 ømm |
| 123-104 | - | Metric | 75-100mm | ±6µm | 375g | 0.01mm | 1µm | 6µm or less | 20 ømm |
| 123-105 | - | Metric | 100-125mm | ±7µm | 520g | 0.01mm | 1.6µm | 7µm or less | 30 ømm |
| 123-106 | - | Metric | 125-150mm | ±7µm | 570g | 0.01mm | 1.6µm | 7µm or less | 30 ømm |
| 123-107 | - | Metric | 150-175mm | ±8µm | 730g | 0.01mm | 1.6µm | 8µm or less | 30 ømm |
| 123-108 | - | Metric | 175-200mm | ±8µm | 890g | 0.01mm | 1.6µm | 8µm or less | 30 ømm |
| 123-109 | - | Metric | 200-225mm | ±8µm | 1000g | 0.01mm | 1.6µm | 8µm or less | 30 ømm |
| 123-110 | - | Metric | 225-250mm | ±9µm | 1200g | 0.01mm | 1.6µm | 9µm or less | 30 ømm |
| 123-111 | - | Metric | 250-275mm | ±9µm | 1410g | 0.01mm | 1.6µm | 9µm or less | 30 ømm |
| 123-112 | - | Metric | 275-300mm | ±9µm | 1680g | 0.01mm | 1.6µm | 9µm or less | 30 ømm |
| 123-113 | - | Metric | 0-25mm | ±4µm | 230g | 0.01mm | 1µm | 4µm or less | 20 ømm |
| 123-114 | - | Metric | 25-50mm | ±4µm | 270g | 0.01mm | 1µm | 4µm or less | 20 ømm |
| 123-115 | - | Metric | 50-75mm | ±6µm | 320g | 0.01mm | 1µm | 6µm or less | 20 ømm |
| 123-116 | - | Metric | 75-100mm | ±6µm | 390g | 0.01mm | 1µm | 6µm or less | 20 ømm |
| 123-125 |  |
Inch | 0-1" | ±0.0002" | 200g | 0.001" | - | 0.00016" or less | 0.787 øinch |
| 123-126 | - | Inch | 1-2" | ±0.0002" | 250g | 0.001" | - | 0.00016" or less | 0.787 øinch |
| 123-127 | - | Inch | 2-3" | ±0.0003" | 300g | 0.001" | - | 0.00024" or less | 0.787 øinch |
| 123-128 | - | Inch | 3-4" | ±0.0003" | 375g | 0.001" | - | 0.00024" or less | 0.787 øinch |