This is a brand new Ruby Buttonholer RB-LC - made in Taiwan. This vintage-style mechanical sewing machine attachment enables straight-stitch-only machines (which lack an internal zigzag function) to create professional-looking buttonholes. It is a low-shank attachment compatible with most domestic sewing machines that use a screw-on presser foot.

What's Included

• Ruby Buttonholer RB-LC - Item #: RJ-BH103
• High Shank Adapter - for use with high shank machines
• 1 Screw
• Cover Plate - for covering feed dogs
• Complete Instructions

Features and Compatibility

• Brand New - Quality made in Taiwan
• Low Shank Design - Fits most low shank straight stitch machines
• High Shank Adapter Included - Can also be used on high shank machines
• Fully Automatic Operation - Automatically cycles through all buttonhole steps
• Adjustable Length - Accommodates buttonhole lengths from approximately 10mm to 25mm (or up to 49mm depending on variant)
• Adjustable Width - Settings (markings 1-2-3) to adjust the width of the buttonhole's sides
• Adjustable Stitch Density - Dial ranges from "W" (wide/fewer stitches per inch) to "N" (narrow/satin stitch density)
• Compatible Machines - Works with most low shank straight stitch machines including Singer models 15, 27, 28, 66, 99, 101, 201, 221 (Featherweight), 222, and many others

What It Does

The Ruby Buttonholer RB-LC is designed to mechanize the creation of buttonholes on straight-stitch machines:

• Creates Buttonholes on Straight-Stitch Machines: While the sewing machine's needle moves only straight up and down, the buttonholer attachment uses a clever internal mechanism driven by the needle bar to move the fabric side-to-side and forward-and-backward, forming a zigzag stitch pattern
• Fully Automatic: The attachment automatically cycles through the steps needed to create one side of a buttonhole, the bartack (end stitching), the other side, and the final bartack
• Professional Results: Creates neat, professional-looking buttonholes with consistent stitch density and width
• Versatile: Perfect for garment construction, repairs, alterations, and craft projects

How to Use the Ruby Buttonholer RB-LC

The process for using the Ruby Buttonholer RB-LC is different from modern buttonhole feet because the attachment itself handles the fabric movement.

1. Attach the Buttonholer: Remove the sewing machine's presser foot and attach the Ruby buttonholer to the presser bar using the presser foot thumb screw
2. Engage the Fork: Ensure the attachment's operating lever (a fork-shaped arm) straddles the needle bar clamp. This is essential for the machine's up-and-down motion to power the attachment
3. Cover or Drop Feed Dogs: The buttonholer moves the fabric, not the machine's feed dogs. You must drop your machine's feed dogs or cover them with the metal cover plate that comes with the attachment
4. Set Machine to Straight Stitch: Set your sewing machine to a straight stitch with the needle in the center position. Do not use the machine's zigzag setting. The attachment creates the zigzag
5. Adjust Settings: Set the desired buttonhole length using the selector on the attachment and choose the desired width and stitch density settings
6. Position Fabric: Place your marked fabric under the buttonholer's clamp plate and lower the clamp
7. Sew: Begin sewing at a moderate, steady speed. The attachment will automatically feed the fabric and execute the entire buttonhole pattern (both sides and both bartacks). It may require a little adjustment with the top tension for the best result
8. Finish: Once the buttonhole is complete, lift the needle and the attachment, remove the fabric, and use a seam ripper to carefully cut the fabric open between the stitching lines, being careful not to snip the end stitches

Add professional buttonhole capability to your vintage straight-stitch machine. This brand new Ruby Buttonholer RB-LC delivers quality construction and reliable performance. Perfect for creating professional buttonholes on garments, repairs, alterations, and sewing projects.

Order your new Ruby Buttonholer RB-LC from Central Michigan Sewing Supplies today.