Mandrels type CY44 and CY56 with SHORT stones (68 e 80 mm – 2.67” and 3.14”) These lifetime mandrels are specifically designed to work cylinders with radial holes very large as kart cylinders. Stone support and guide-shoe are of proper length to produce straight, round and accurate holes. The best technical situation is to have a mandrel for each diameter to work. To find the mandrel that you need, be sure that the bore diameter of the cylinder to work is included between the size range of the hone. The diameter for the mainly diffuse capacity are: - Ø 42 mm (1.653”) for 60cc - Ø 50 mm (1.968”) for 100cc - Ø 54 mm (2.125”) for 125cc

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