Extension Coupling

SKU: N/A

Wilson Extension Couplings, available in both plain or reducing types, are generously proportioned and heat-treated to withstand applicable torque loads. Sockets have clearances to accommodate drive extensions, universals, and more.

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Square Size	Overall Length	Diameter	Part No.
Inches	Inches	Inches	Part No.
3/8 x 3/8	1-7/16	13/16	20061
3/8 x 1/2	1-9/16	1-1/16	20189
1/2 x 1/2	1-11/16	1-1/16	20063
1/2 x 3/4	2-1/16	1-3/8	20191
1/2 x 1	2-5/16	1-7/8	20193
3/4 x 3/4	2-1/8	1-1/2	20065
3/4 x 1	2-3/8	1-7/8	20202
1 x 1	3	1-7/8	20067