Thread gauge metric, 20 blades
- for controlling and increasing the interior thread and outside thread
- metric sizes
- cylindrical tapered
- leaves fan shaped arrangement
- leaves individually marked with size
- out of hardened spring steel
- For thread size: 0,40-0,45-0,50-0,60-0,70-0,75-0,80-1,00-1,25-1,50-1,75-2,00-2,50-3,00-3,50-4,00-4,50-5,00-5,50-6,00mm




