Thomas C. Wilson Tube Tools
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BOILER TUBE EXPANDERS

EXPANDERS

Extension Couplings

Extension Couplings
Wilson extension couplings are available in either a plain or reducing type. They are generously proportioned and heat treated to withstand applicable torque loads. Sockets have clearances to accommodate drive extensions, universals, etc.
 
Square Size Overall Length Diameter Part No.
Inches Inches Inches
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 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 20067