19PCS SOCKET BITS SET:    

6PCS 37MM 1/4 SOCKET BITS, S2 BITS, 50BV30 SOCKETS:    

H:2,3,4,5,5.5,6    

4PCS 48MM 3/8 SOCKET BITS,S2 BITS, 50BV30 SOCKETS:    

H:7,8,9,10    

9PCS 55MM 1/2 SOCKET BITS, S2 BITS, 50BV30 SOCKETS:    

H:11,12,13,14,15,16,17,18,19