| Metric | ||||
| Order No | Range | Accur | a/b | Remarks |
| 389-251-30 | 0-25mm | ±4µm | 160/27.5mm | – |
| 389-252-30 | 25-50mm | ±4µm | 165/27.5mm | – |
| 389-261-30 | 0-25mm | ±4µm | 160/27.5mm | Spherical anvil and flat spindle |
| 389-262-30 | 25-50mm | ±4µm | 165/27.5mm | Spherical anvil and flat spindle |
| 389-271-30 | 0-25mm | ±4µm | 160/27.5mm | Spherical anvil and spherical spindle |
| 389-272-30 | 25-50mm | ±4µm | 165/27.5mm | Spherical anvil and spherical spindle |
| 389-514 | 0-25mm | ±5µm | 330/35mm | – |
| Inch/Metric | ||||
| Order No | Range | Accur | a/b | Remarks |
| 389-351-30 | 0-1in 0-25.4mm | ±0.0002in | 6.3in/1.08in | – |
| 389-352-30 | 1-2in 25.4-50.8mm | ±.0002in | 6.5in/1.08in | – |
| 389-361-30 | 0-1in 0-25.4mm | ±.0002in | 6.3in/1.08in | Spherical anvil and flat spindle |
| 389-362-30 | 1-2in 25.4-50.8mm | ±.0002in | 6.5in/1.08in | Spherical anvil and flat spindle |
| 389-371-30 | 0-1in 0-25.4mm | ±.0002in | 6.3in/1.08in | Spherical anvil and spherical spindle |
| 389-372-30 | 1-2in 25.4-50.8mm | ±.0002in | 6.5in/1.08in | Spherical anvil and spherical spindle |
| 389-714 | 0-1in 0-25.4mm | ±.00025in | 13in/1.38in | – |
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