ARP Thread Cleaning Tap - M10 X 2 26-NSO-N-SM One-piece stepped brass end fitting

One-piece stepped brass end fitting with O-rings fits 14mm and 18mm spark plug threads

Incl Air Line

Distributor Vacuum Advance

They are only to be used in racing vehicles off of public streets and highways

1975-1985 Chevrolet Impala

ARP Thread Cleaning Tap - M10 X 2 26-NSO-N-SM One-piece stepped brass end fittingARPs product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline. These range from quality high performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, IMSA, NASCAR and NHRA drag racing and marine applications. Since 1968, ARP is the fastener of champions and the world leader in fastener technology. Product Description: Thread Chaser 10 mm x 2. 00