Lapper with 3 soft stones TUN’R for cylinder from Ø35 to 80mm

Here is the lap with 3 soft stones TUN 'R for cylinder from Ø35 to 80mm. This tool will be used to break in the cylinder and make up for small defects due to preparation, manufacturing when the cylinder is new, or a small primer...



This lap has 3 stones is simply used at the end of a screwdriver, it is adjustable in hardness and width. For use, attach it to the end of a screwdriver, oil the cylinder and the stones, then gently rotate the stones previously stretched in the cylinder, going back and forth.



This lap can be used on cast iron cylinders as well as nykasil or chrome treated aluminum cylinders. This tool is also ideal when changing a piston side to recreate a few micro scratches that will hold the cylinder lubrication. We regret one thing, no spare stone is supplied with the lap, however it is a high quality tool for all those who wish to preserve their cylinders.