The two National South sides will replay their FA Trophy first-round tie following dramatic late goals by the home side.
It was Angels who enjoyed most of the chances in the first period but Hampton who reached the break two goals to the good.
The visitors started strongly and with the home defence looking bewildered it was no surprise when Danilo Orsi-Dadomo game the Beavers the lead after just five minutes. The goal woke Tonbridge up from their apathy and they proceeded to create opportunities with Khale Da Costa, Joe Turner and Tom Derry all going close.
But it was the clinical Beavers who went further ahead in the 36th minute following a mistake on the Tonbridge back line with Wadah Ahmedi the grateful recipient.
With the pitch becoming heavier there were fewer chances, which played into Hampton’s hands and they appeared to be cruising to a comfortable win.
As time ran out, defender Sonny Miles went to play up front with Jarrod Small on one flank and Da Costa on the other, and their crosses started to stretch the visiting defence.
With 90 minutes on the clock time was running out for the home side when Rian Bray was fouled in the area and D’Sean Theobalds made no mistake with the spot-kick.
Two minutes into time added on, amid huge pressure on the Hampton goal, Alex Bentley got the final touch with the help of a slight deflection for Tonbridge’s last-gasp equaliser.
Angels manager Steve McKimm said: “At times it wasn’t the best of performances but I have to give the players great credit for never giving up. We’ve earned another chance.”
Tonbridge return to league action at Hemel Hempstead on Saturday (December 21, kick-off 3pm).