The funnel of the gauge
The funnel of the gauge intended for calibration, templating, washing, and expanding the borehole.
| Product designation | Diameter, mm | Length L, mm | Connecting thread as per GOST R 50864-96 (API) | |
| Exterior | Internal | |||
| VK-218,0 | 218 | 105 | 370 | Clutch Z-147 (5 ½ FH) |
| BK1-218,0 | 218 | 105 | 480 | Clutch Z-147 (5 ½ FH) |
| BK1 - 212,0 | 212 | r: 1px solid #00008b; text-align: center;">105480 | Clutch Z-147 (5 ½ FH) | |
Example of designation of the funnel of the gauge:
BK1-218,0
The VC - funnel gauge
1 - the first performance
218,0 - external diameter VC
