Singer 337 - Stitch Controls; Stitch Length Lever

FABRIC, THREAD,
NEEDLE
8
AND STITCH LENGTH CHART
FABRICS
__ m
DELICATE---tulle, chiffon, fine lace, silk,
organdy, fine tricot
LIGHTWEIGHTBbatiste, organdy, Jersey,
voile, taffeta, silk crepe, plastic film
MEDIUM WEIGHTBgingham, percale, pique,
linen, chintz, faille, satin, fine corduroy, suitings
MEDIUM HEAVY--gabardine, tweed, sailcloth,
denim, coatings, drapery fabrics
HEAVYmovercoatings, dungaree, upholstery
fabrics, canvas
THREAD
SIZES
Fine Mercerized
100 to 150 Cotton
Synthetic Thread
50 Mercerized
80 to 100 Cotton
"A" silk
Synthetic Th read
50 Mercerized
60 to 80 Cotton
"A" Silk
Synthetic Thread
Heavy Duty Merc.
40 to 60 Cotton
NEEDLE
SIZES
9
II
14
MACHINE STITCHES
PER INCH
STRAIGHT STITCHING
15 to 20
-- w
12 to 15
(8 to 10 for plastic)
Heavy Duty Merc.
24 to 40 Cotton
16
12 to 15
10 to 12
18 8 to 10