PART:  #YS4455 
The alternative part number is: #IBA10

THIS LISTING INCLUDES : 
1 SET Brand New High Quality Button Hole Attachment for Industrial Single Needle Sewing Machines.
Thread split fork will be sent together as the gift free of charge .

FIT FOR: 
single needle industrial lockstitch sewing machine.
single needle industrial lockstitch computerized sewing machine.
domestic old type sewing machine with foot treadle.
Made in Taiwan!

Compatible with: Juki DDL Series, Consew 230, Etc... 

Use of this attachment on your industrial sewing machine will enable you to make buttonholes quite easily.
Garment factories will find this attachment very useful.
Adjustable on depth of stitch , cutting space and length of stitch.
Take off the screw and this attachment now makes bar tacking stitches