- 12" (model also has a plumb vial and the 18" size has a double plumb vial.
- Vials are adjustable to a positive setting and are housed in a satin finished brass tube with a friction-fit closing cover to prevent breakage.
- Base of the levels features an involute groove running the length of the base,which provides a reliable seat for round work
- The 6" through 18" main level vials have graduations that are approximately 80-90 seconds or .005" per foot
- There are five, six, or seven lines on each side of the bubble, depending on the base length.

Starrett - Machinists’ Levels - 4 - 18" - 98 Series
| Item No. | Size | MSRP | Our Price | QTY |
|---|---|---|---|---|
| 98-4 | 4" Without Cross Test Vial | $168.00 | $159.00 | |
| 98-6 | 6" With Cross Test Vial | $203.00 | $193.00 | |
| 98-6 W/SLC | 6" With Cross Test Vial w/SLC | $255.00 | $242.00 | |
| 98-8 | 8" With Cross Test Vial | $249.00 | $237.00 | |
| 98-12 | 12" w/Plumb Vial and Cross Test Vial | $335.00 | $318.00 | |
| 98-12 W/SLC | 12" w/Plumb Vial and Cross Test Vial w/SLC | $387.00 | $368.00 | |
| 98Z-12 | 12" w/Plumb Vial and Cross Test Vial w/Case | $469.00 | $445.00 | |
| 98Z-12 W/SLC | 12" w/Plumb Vial and Cross Test Vial w/SLC & Case | $531.00 | $504.00 | |
| 98-18 | 18" With Double Plumb Vial and Cross Test Vial | $580.00 | $551.00 | |
| 98Z-18 | 18" With Double Plumb Vial and Cross Test Vial & Case | $738.00 | $701.00 |
Technical Specs:
