21.3 mm (0.84") ID
60.3 mm (2.37") OD
The machining capacity of the GR40 is 21.3 mm (0.839“) ID to max. 60.3 mm (2.374“) OD. The PROTEM GR40 is specifically designed for boiler panels and waterwall cutout windows.
12.5 mm (0.49") ID
120 mm (4.72") OD
12.5 mm (0.49") ID
120 mm (4.72") OD
10 mm (0.39") ID
60.3 mm (2.37") OD
60.3 mm (2.37") ID
219.1 mm (8.63") OD
14 mm (0.55") ID
42 mm (1.65") OD