koken logoKoken Tools are Made in Japan

 

 

 

 

 

 

 

 

 

 

 

Width Across Flats:

BS 3/16BS 1/4BS 5/16BS 3/8BS 7/16BS 1/2BS 9/16BS 5/8BS 11/16BS 3/4BS 7/8BS
W 1/8W 3/16W 1/4W 5/16W 3/8W 7/16W 1/2W 9/16W 5/8W 11/16W 3/4W
AF .340in. .449in. .525in. .599in. .709in. .820in. .902in. .920in. 1.099in. 1.199in. 1.312in.
                       

 

 

 




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