Reciprocating pistons put a glaze on cylinder walls and this can stop new piston rings from bedding in affecting both compression and oil retention.
Cylinder hones remove the glaze rapidly with the aid of your drill. Smaller hones can be used to de-glaze brake and clutch master and slave cylinders.
This Two Leg Hone (13 - 50mm) comes with 4 long medium cut stones.
3 Other Engine Cylinder Hone Sizes: 50-170mm, 40-80mm and 19-60mm.
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