Flank Drive® Sockets
Aerospace, inches
3/8 SDH121 19/32 7/8 13/16 1-1/2 9/32
7/16 SDH141 11/16 29/32 13/16 1-1/2 11/32
1/2 SDH161 3/4 29/32 13/16 1-1/2 3/8
9/16 SDH181 27/32 29/32 13/16 1-1/2 13/32
5/8 SDH201 29/32 7/8 13/16 1-1/2 15/32
11/16 SDH221 31/32 15/16 1-1/16 1-3/4 1/2
3/4 SDH241 1-1/16 1-1/32 1-1/16 1-3/4 19/32
25/32 SDH251 1-1/32 1-1/64 1-3/32 1-3/4 5/8
13/16 SDH261 1-1/8 1-3/32 1-1/16 1-3/4 21/32
7/8 SDH281 1-3/16 1-5/32 1-1/8 1-3/4 23/32
15/16 SDH301 1-9/32 1-1/8 1-5/32 1-13/16 23/32
1 SDH321 1-11/32 1-5/16 1-7/32 1-7/8 3/4
1-1/16 SDH341 1-7/16 1-13/32 1-7/32 1-15/16 3/4
1-1/8 SDH361 1-1/2 1-15/32 1-1/4 1-31/32 25/32
1-3/16 SDH381 1-9/16 1-17/32 1-5/16 2 25/32
1-1/4 SDH401 1-9/16 1-17/32 1-9/32 2-1/32 13/16
1-5/16 SDH421 1-21/32 1-5/8 1-5/16 2-1/32 27/32