For 2 1/4" x 2" headrail. Square drive hole.
Replacement Tilter for 2" and 2 1/2" Blind. Select Headrail Puch Hole Sizes ; Large or Small
Large = 1"x 1/2" headrail hole size
Small = 3/4" x 1/2" headrail hole size
Posted by Unknown on 2nd Feb 2014
The metal stem and gear is good, however, the gear is operating in reverse from the original tilt. The option for 2 sizes for the seat hole for the stem is good, but the small is still too large for my blinds. They are installed, and work smoothly. The reverse gears are a problem since we have blinds side by side in groups as large as six.