The t-handle is available for those who prefer to use something other than the standard crank handle, or where mini-blinds, sunshades, insect screens, etc. Will not allow the crank handle to be used. The t-handle has a 5/16_ spline fitting all truth roto gear operators. It attaches with a set screw and is painted to match the operator. Part# 17cw42, white finish
Number. 5043999
Brand: AMESBURY TRUTH