- Half as many bar graduations as conventional single-vernier tools
- Easy to read
- Machine divided graduations
- Tight, smoothly fitted slides
- No glare Starrett satin chrome finish
- Long 50-division vernier scales
- Open-face design
- Screw-type adjusting nut allows for fine measuring adjustments and lock nut holds measurements
- Fine tool steel construction
- Hardened, ground and lapped measuring surfaces