MCS-933089 - 12mm threaded. 19mm (3/4") reach. Used with a 18mm spark plug socket. Threaded terminal.

Fitment:
Ducati: 1991 900 SL 900cc. Honda: 84-87 VF 500 F2 Interceptor 500cc; 89-90 CBR 600 F 600cc; 83-84 CBX 650 E 650cc; 86-87 VFR 750 F 750cc; 88-89 VFR 750 F 750cc; 93-99 CB 1000 F Big One 1000cc; 93-96 CB 1000 F Super Four 1000cc; 87-92 CBR 1000 Dual CBS 100