USAG/Facom 1/4" Drive Ratchet Head (9x12mm) (811 E 1/4).....1/4" drive ratchet attachment for R.301, R.304DA and R.306 Facom and USAG torque wrenches using 9x12mm attachments/accessories. Made in Italy.
USAG makes this for Facom and the part is considerably cheaper plus a US warranty. The Facom branded equivalent will be a special order item.