| Use | Piston, Crank Shaft, Pump & motor |
| Manufacturing Standard | : IS:3455-1971 |
| A] Range | 0.5 to 10mm |
| Material | Handle :Aluminium GO Member: Solid Tungesten Carbide NO GO Member: Solid Tungesten Carbide |
| B] Range | 10 to 20mm |
| Material | Handle :Steel Tungesten Carbide flat 22mmx9mm x w |