SPI 57704058 13-551-7 2.5-3in 0.00005in Electronic 3-Point Bore Micrometer
Regular price
$184.30
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This SPI 57704058 is the electronic reading unit for the SPI 13-551-7 three-point internal micrometer (bore gauge), covering a 2.5 to 3 inch measuring range with 0.00005 inch resolution. The self-centering three-point contact design is used for measuring bore diameters, and the digital display has ON/OFF-SET, ABS/INC and UNIT (inch/metric) buttons. The body is IP54 rated and uses 1.5V LR44 button cell batteries. The item is new and ships in a fitted wooden case with foam insert, two spanner wrenches, a setting washer or tab, and two LR44 batteries as shown in the photos.
Product Specifications
| Brand | SPI |
| MPN | 57704058 |
| Alternate Part Number | 13-551-7 |
| Measuring Range | 2.5-3 in |
| Resolution | 0.00005 in |
| Measuring Type | 3-Point Internal (Bore) |
| Display Type | Electronic Digital LCD |
| IP Rating | IP54 |
| Battery Type | LR44 1.5V Button Cell |
| Country of Origin | China |
| Case | Wooden Fitted Case w/ Foam Insert |
| Included Accessories | 2 Spanner Wrenches, Setting Tab, 2 LR44 Batteries |
| Controls | ON/OFF-SET, ABS/INC, UNIT |
| Number of Contact Points | 3 |