38 mm (1.50") ID
76 mm (2.99") OD
The machining capacity of the GR76 is 38 mm (1.496“) ID to max. 76 mm (2.992“) OD. The PROTEM GR76 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