The inner and outer chamfering of the pipe can be set separately at the same time. The KOPAL chamfer unit is made of a combination of the body, blade and guide. The conical guide allows you to adjust the height of the spring. The high speed steel blade can be locked with a nut to set the blade protrusion of the blade. Chamfering between the inner and outer diameter.; Chamfer angle (°): 90 Diameter: Inner Diameter: 0.6 - 1.1 inches (15 - 27 mm); A:2.3 inches (58 mm); Chamfering diameter:0.7 - 1.2 inches (18 - 30 mm); B:4.1 inches (105 mm); Shank size: MT2; Model: K2; Applicable blade: High speed steel