SAN 5�2
Ball Point
D1
Perpendicular
Point
Triangular
Point
Twist Point
SD1
Round/
Sharp
Needle Types
Ultrafeed Sewing Machines require 135x17 or 135x16 needles sizes #10 to
#22, all available at Sailrite
®
�
SD1 needles are optimized for fine leather; they also work
well for sewing heavy sailcloth assemblies� The needle
partially cuts, then pushes material fibers out of the way.
Ball Point needles are specifically designed for use with knit
or stretchy materials� The blunt tip on this needle passes
thread between material fibers instead of through them.
SAN 5�2 needles can sew the same materials as Round/
Sharp Point needles but with fewer issues such as
deflection, needle breakage and material damage. They are
ideal for sewing slippery threads like PTFE or lifetime thread
and are more resistant to needle gumming from basting tape�
DI needles have large, diamond-shaped cutting points
that easily sew heavy, dry and hard leather� They
produce straight seams with recessed stitches� These
needles are best for sewing medium to long stitches�
Twist Point needles have oval-shaped cutting points
that are twisted 45 degrees from the needle eye�
They are best for sewing short to medium stitches in
light to medium-hard leather� These needles produce
decorative seams of slanted, slightly elevated stitches
that closely mimic the look of hand stitching�
Perpendicular Point needles have wide, flat cutting
points that are perpendicular to the direction of
sewing� They can sew very strong seams in light
to heavy leather� They produce decorative seams
of slanted, recessed stitches� These needles are
best for sewing very short to short stitches�
Triangular Point needles have sharp, three-sided
cutting points that easily sew thick or hard leather� They
produce seams with slightly elevated stitches� These
needles are best for sewing medium to long stitches�
Round/Sharp Point needles are used for all general
sewing� Serv7 needles are modified Round Point
needles that have an extended shoulder to prevent
skipped stitches and reduce needle breakage�
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Ultrafeed
®
LSZ Guidebook
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