De-glazing cylinders

[Niall]

You want to use something like 3in1 for a lube. Fairly light pressure and keep at it on probably about 1/4 drill speed. You want the hatching to be slightly less than a 45 degree angle tk each other until the bores are almost a Matt finish. Don't be scared to put too much pressure on but just remember to keep it regularly lubed up....giggidy