Car Axles for Pinewood Derby 100 000 Grit Optical Polish by Derby Dust

4x BSA AXLES that have been prepped, ready to race. Final stages of polishing are lapped with 10 micron, 5 micron, 2.5 micron, 0.5 micron (100,000 grit) to bring a mirror finish using 5 separate buffing plates to ensure absolute polishing finishes. No Cross contamination here just to save a few bucks. These axles look and sound like champions. Reaching 15.5+ fps at end of 32ft track, exceeding over 17fps at bottom of hill. Works with dry or oil lubes!