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Koken Tools are Made in Japan

CS-0003 Socket Set 8 piece 12 point 1/2 inch drive RS4405W/8

(1/8, 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16 Whitworth)

CS-0013 Socket Set 8 piece 6 point 1/2 inch drive RS4400W/8

CS-0014 Socket Set 7 piece 12 point 3/8 inch drive Flex-head

CS-0388J Socket Set 6 piece 12 point 3/8 inch drive RS3405W/6
(1/8, 3/16, 1/4, 5/16. 3/8, 7/16 Whitworth)

CS-0533 Socket Set 7 piece 6 point 3/8 inch drive RS3400W/7
(1/8, 3/16, 1/4, 5/16, 3/8, 7/16, 1/2 Whitworth)

CS-0389J Socket Set 8 piece 12 point 3/8 inch drive RS3405W/8
(1/8, 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16 Whitworth)

CS-0534 Socket Set 8 piece 6 point 3/8 inch drive RS3400W/8
(1/8, 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16 Whitworth)

CS-0530 Deep Set 7 piece 6 point 3/8 inch drive
RS3300W/7
(1/8, 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, Whitworth)

CS-0531 Deep Set 8 piece 6 point 3/8 inch drive
RS3300/W8
(1/8, 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16 Whitworth)

CS-0532 Deep Set 8 piece 12 point 3/8 inch drive
RS3305W/8
(1/8, 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16 Whitworth)

CS-0535 BA Set 9 piece 6 point 3/8 inch drive
RS2400W/9
(British association) (8, 7, 6, 5, 4, 3, 2, 1, 0 BA)

AF = Dimension across flats of nut or bolt.
BS = British Standard
W= Whitworth
BA = British Association