I provide 2 slightly different style 1" rings. Upon close examination you will see the back side (inner surface) of one steel ring is concave to fit around the circumference of the o'ring. Both steel rings are USA made steel.
1/2" IMPACT GUN SOCKET RING KITS 6 PAIR-CORDLESS MILWAUKEE+KOBALT+De WALT+MAKITA
I-R Impact Gun Socket Retainer and O-Ring 1"Anvil for IR Models 285B & 285B-6
Snap-On Limited Edition GREEN 3/8” Dr Air Impact Gun Socket Wrench MG325
7-in-1 Impact Driver Socket Set, 3 Flip Sockets, 6 Hex Sizes, 1/4" Bit Holder
Ingersoll Rand 2175 1" Impact Gun
1/2" IMPACT WRENCH GUN SOCKET RETAINER RING WITH O'RING - 3 SETS