Products
Three Point Internal Micrometers

Features:
Carbide-tipped contact points and three lateral protruding fingers for highly wear- resistance.
Measurement can be taken close to the bottom of a blind bore.
With Ratchet Stop for constant force.
With precision ring gauge for zero setting and re-setting.

Specifications:
| Measuring Range | Order No. | Graduation | Limit Error |
| 6-8mm | 243-301 | 0.001mm | 0.004mm |
| 8-10mm | 243-302 | 0.001mm | 0.004mm |
| 10-12mm | 243-303 | 0.001mm | 0.004mm |
| 12-16mm | 243-304 | 0.005mm | 0.004mm |
| 16-20mm | 243-305 | 0.005mm | 0.004mm |
| 20-25mm | 243-306 | 0.005mm | 0.004mm |
| 25-30mm | 243-307 | 0.005mm | 0.004mm |
| 30-40mm | 243-308 | 0.005mm | 0.004mm |
| 40-50mm | 243-309 | 0.005mm | 0.004mm |
| 50-63mm | 243-310 | 0.005mm | 0.004mm |