These tools use patented ergocentric cutters to clean hard scale from typically larger tubes that are found in boilers. The ergocentric cutters ensure that the same tooth does not touch the same spot when cleaning and prevents grooves being formed in the tube scale. All cone cutter tools are fitted with universal joints to negotiate bends in curved tubes

One Cone Tool These consist of 1 Cone fitted onto a Universal Joint and are used when scale build up is not severe.
Two Cone Tool These consist of 2 Cones fitted onto a Universal Joint and are used when scale build up is severe.
Three Cone Tool These consist of 3 Cones fitted onto a base which is fitted with a Universal Joint and are used for cleaning larger (2.5/16" I.D. and up) tubes where scale build up is severe.

One Cone & Two Cone Tools
Straight Tube I.D. Curved Tube I.D. One Cone Tool Model Two Cone Tool Model Cone Diameter Spare Cone Model Spare Universal Joint Model
mm inch mm inch mm inch
27.0-33.3 1.1/16-1.5/16 30.2-36.5 1.3/16-1.7/16 PM-OCT-1063 PM-TCT-1063 23.8 15/16 PM-SCT-937 PM-UCT-1063
31.7-36.5 1.1/4-1.7/16 36.5-42.9 1.7/16-1.11/16 PM-OCT-1250 PM-TCT-1250 27.0 1 1/16 PM-SCT-1062 PM-UCT-1250
35.0-39.7 1.3/8-1.9/16 42.9-49.2 1.11/16-1.15/16 PM-OCT-1375 PM-TCT-1375 30.2 1 3/16 PM-SCT-1187 PM-UCT-1250
38.1-46.0 1.1/2-1.13/16 49.2-55.5 1.15/16-2.3/16 PM-OCT-1500 PM-TCT-1500 36.5 1 7/16 PM-SCT-1437 PM-UCT-1250
44.5-58.7 1.3/4-2.1/16 55.5-61.9 2.3/16-2.7/16 PM-OCT-1750 PM-TCT-1750 42.9 1 11/16 PM-SCT-1687 PM-UCT-1250
50.8-60.3 2-2.3/8     PM-OCT-2000 PM-TCT-2000 49.2 1 15/16 PM-SCT-1937 PM-UCT-1250
Three Cone Tool
Straight Tube I.D. Curved Tube I.D. Three Cone Tool Model Spare Cone Tool Model Spare Base Model Spare Universal Joint Model
mm inch mm inch
58.7-73.0 2.5/16-2.7/8 61.9-79.4 2.7/16-3.1/8 PM-PCT-2313 PM-SCT-937 PM-CTB-2313 PM-UCT-1250
71.4-85.7 2.13/16-3.3/8 77.8-93.7 3.1/16-3.11/16 PM-PCT-2813 PM-SCT-937 PM-CTB-2313 PM-UCT-1250
84.1-96.8 3.5/16-3.13/16 92.1-103.2 3.5/8-4.1/16 PM-PCT-3313 PM-SCT-1062 PM-CTB-2313 PM-UCT-1250