One full turn on standard 14 TPI dies will give you ~1.8mm change, so 1/4 will be ~0.45mm. For your situation I would start at 0.5mm (20 thou) off jam so 1/4 turn is as near as damn it is to swearing.
Type: Posts; User: zimmer
One full turn on standard 14 TPI dies will give you ~1.8mm change, so 1/4 will be ~0.45mm. For your situation I would start at 0.5mm (20 thou) off jam so 1/4 turn is as near as damn it is to swearing.