Maximum snooker break is 147 (under normal circumstances). But the maximum snooker break of 151 was achieved by Wally West against Butch Rogers during a club match in 1976.
147 is the highest snooker break. and many of the players have made it. i am listing some of them below.
Steve Davis was the first player to make 147 break in 1982.
Stephen Hendry is the most recent playe who made 147 snooker player