Two adjustable small hole lapping tools made to open up the bullet chambers only in Wilson straight line seating dies for cast. Made from a section of 3/8" aluminum shotgun cleaning rod.
One on the right is for .30 cal. One on left is for a new 7x57 Mauser seater. Needed to go out .002"+ from as recieved .285," to .287+. -" for a Venezuelan 98 Mauser short rifle.
Partial case has the flash hole drilled out and acts as a guide bushing and stop for lap.
R.