Galling is a severe form of wear that occurs when metal surfaces slide against each other under high pressure and friction.

Gun issues aside, [Justin]’s been CNC milling his own gun parts for quite a while ... the process of being milled from a solid block of aluminum. Our friend the gun nut is insanely jealous ...

and other specifically designed features in order to achieve “high-end CNC level performance”: thus, in a single-part clamping posture, the agile high-speed spindle can reach compound angles and ...