Machine set-up, Materials, Procedure – SINGER 9910-WORKBOOK Quantum User Manual
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The built-in One-Step Keyhole Buttonhole measures the button’s length 
and then automatically sews a beautiful buttonhole. The Keyhole 
Buttonhole is an attractive closure for coats, jackets and sportswear.
It is often used on menswear.
Machine Set-up
Stitch:
Stitch Width: 
Stitch Length: 
Presser Foot:
#63, Buttonhole 
5.0 
0.5
Buttonhole Foot
(See manual for complete machine set-up for buttonholes)
Materials:
Heavy weight woven fabric 
Interfacing or tear-away stabilizer
Disappearing marking pen or tailor chalk (for marking start of buttonhole) 
Button (to establish length of buttonhole)
Procedure:
♦ Fold fabric in half crosswise, with interfacing or stabilizer between layers.
♦ Make a mark with the disappearing marking pen to indicate where the 
bottom or first bartack should be sewn.
Open the button plate and insert the button.