Sewing Machine Parts & Accessories: The Complete Guide

If you’ve ever felt like you were fighting your sewing machine, there’s a fair chance the machine wasn’t the problem. The wrong needle or the wrong presser foot turns routine sewing into a struggle, and swapping either takes thirty seconds.

Four presser feet handle about 90% of everyday sewing. The right needle for the fabric prevents most skipped stitches. Neither costs much.

This guide covers needles, presser feet, bobbins and the accessories worth owning. It’s part of our wider sewing and embroidery section.

Needles

The most consequential and most neglected part of a sewing machine.

Sizes

Needle sizes use two numbering systems, usually written together — European (60–120) and American (8–19). Higher numbers mean thicker needles.

SizeFabric weight
60/8 – 70/10Lightweight — chiffon, voile, silk
75/11 – 80/12Standard — quilting cotton, poplin, jersey
90/14Medium-heavy — linen, light denim, twill
100/16Heavy — denim, canvas
110/18 – 120/19Very heavy — upholstery, leather, multiple layers

Point Types

Point type matters as much as size, and it’s where most fabric damage comes from.

Universal — a slightly rounded point that works acceptably on most fabrics. The default.

Sharp / Microtex — very fine point for tightly woven fabrics, silk, and precise topstitching.

Ballpoint / Jersey — rounded tip that pushes between knit loops rather than piercing them. This is what prevents laddering and skipped stitches on knits. Using a universal needle on jersey is one of the most common causes of ruined knit projects.

Stretch — ballpoint with a modified scarf, for highly elastic fabrics like swimwear and lycra.

Denim / Jeans — reinforced shaft and sharp point for dense woven fabric.

Leather — wedge-shaped point that cuts a slit rather than punching a hole. Never use on fabric; the cut weakens it.

Embroidery — larger eye and a shaped groove that reduces friction during high-speed decorative stitching.

Topstitch — extra-large eye for heavy decorative thread.

Twin and triple — two or three needles on one shank, for parallel rows. Check your machine’s maximum needle width first.

When to Change

Needles are consumable. They blunt and develop microscopic burrs long before they visibly bend.

Change roughly every eight hours of sewing, and immediately after hitting a pin. Also change if you notice skipped stitches, thread shredding, snagged fabric, or a popping sound as the needle enters the fabric.

A blunt needle is the single most common cause of problems that feel like machine faults.

Presser Feet

Check Compatibility First

Before buying anything, check two things about your machine:

Shank type — low, high, or slant. Most modern domestic machines are low shank, but not all.

Attachment method — snap-on or screw-on.

Using an incompatible foot risks needle strikes and damage. Some brands (Bernina and Pfaff in particular) use proprietary systems.

The Essential Four

These cover the vast majority of sewing:

All-purpose / zigzag foot — comes with every machine. Straight stitch, zigzag, and most utility stitching.

Zipper foot — lets you stitch close to zipper teeth, piping and bulky edges. The needle can usually sit either side.

Buttonhole foot — makes consistent buttonholes. One-step versions produce identical results every time; four-step needs manual dial turning.

Walking foot — feeds the top layer at the same rate as the bottom. Essential for quilting, matched plaids, slippery fabrics, and thick layers. If you buy one extra foot, make it this.

Worth Adding

Blind hem foot — near-invisible hems on garments.

Quarter-inch foot — a guide set exactly ¼ inch from the needle. Essential for quilt piecing, where small errors compound dramatically across a block.

Overcasting foot — finishes raw edges to prevent fraying. A reasonable substitute if you don’t own an overlocker.

Rolled hem (hemmer) foot — curls and rolls a narrow hem as you sew. Transforms hemming lightweight fabrics like chiffon and voile.

Free motion / darning foot — for free-motion quilting and embroidery. Requires dropping the feed dogs.

Open toe embroidery foot — clear or open front so you can see exactly where you’re stitching.

Teflon / non-stick foot — glides over leather, vinyl and oilcloth, which stick to standard metal feet.

Roller foot — rollers rather than a flat sole, for the same sticky-fabric problem on heavier materials.

Edge stitching foot — a centre guide for perfectly parallel topstitching.

Gathering foot — gathers fabric automatically as it feeds. Saves considerable time on ruffles and shirring.

Invisible zipper foot — grooved sole that guides the zipper coil for a truly hidden finish.

Button sewing foot — holds a button steady while the machine attaches it.

Bias binder foot — folds and applies bias tape in one pass.

Which Foot for Which Problem

ProblemFoot
Layers shiftingWalking foot
Fabric stickingTeflon or roller foot
Need exact ¼” seamsQuarter-inch foot
Hems showing stitchesBlind hem foot
Edges frayingOvercasting foot
Can’t see the stitch lineOpen toe foot
Narrow hems on sheer fabricRolled hem foot
Sewing near zipper teethZipper foot

Bobbins

Use the right bobbins for your machine. This matters more than it sounds. Bobbins vary in size, height and material, and a near-fit bobbin causes tension problems that are very hard to diagnose. Class 15, Class 66 and L-style are common types but they’re not interchangeable.

Plastic bobbins are standard on most modern machines; metal bobbins suit some older and industrial machines. Using the wrong material can affect tension.

Wind evenly. Thread should lie flat and even across the bobbin. Uneven winding causes tension problems that look like machine faults.

Don’t wind a new thread over old thread on a partially full bobbin.

Thread

Thread weight runs inversely — higher numbers are finer.

  • 50wt — standard general-purpose and quilt piecing
  • 40wt — topstitching and machine embroidery
  • 30wt — heavier decorative work
  • 12–20wt — very heavy decorative and hand-look topstitching

Polyester is strong, slightly stretchy, and suits most sewing including knits. Cotton has less stretch, preferred for quilt piecing and natural fibres. Nylon is strong but degrades in sunlight. Rayon has a soft sheen for embroidery; weaker and less bleach-resistant than polyester.

Avoid bargain thread. It sheds lint into the tension discs and bobbin race, and breaks under speed. It costs more in wasted time than good thread costs in money. Thread also degrades with age — decades-old thread from an inherited sewing box snaps readily.

Cutting and Marking Tools

Fabric shears — kept for fabric only. Cutting paper blunts them quickly.

Rotary cutter and self-healing mat — far faster and more accurate than scissors for straight cuts and quilting. Change blades regularly; a dull blade drags the fabric.

Pinking shears — zigzag edge that reduces fraying on woven fabric.

Seam ripper — you will use this constantly. A good one is worth the small extra cost.

Tailor’s chalk, water-soluble pens, tracing wheels — always test marking tools on scrap first, since some don’t come out of some fabrics.

Measuring and Pressing

Clear quilting ruler — for rotary cutting and squaring up.

Flexible tape measure — for body and curved measurements.

Seam gauge — small sliding ruler for hems and consistent seam allowances.

A good iron — pressing is genuinely half of sewing well. Seams pressed as you go produce dramatically better results than pressing at the end.

Pressing ham and sleeve roll — for pressing curved seams without flattening the shape.

Pressing cloth — protects fabric from shine and scorching.

Storage and Maintenance Supplies

Lint brush — for clearing the bobbin area. Never use compressed air; it drives lint deeper into the machine.

Sewing machine oil — only if your manual specifies oiling. Many modern machines have sealed bearings and need none. Never use general household oil.

Spare needles in the sizes and types you use.

Machine cover — dust settling into the mechanism is a slow, avoidable problem.

Common Problems

Skipped stitches on knits. Wrong needle — use ballpoint or stretch.

Fabric sticking and not feeding. Use a Teflon or roller foot for vinyl, leather and oilcloth.

Layers shifting. Walking foot.

Thread shredding. Blunt needle, needle eye too small for the thread, or poor-quality thread.

Tension problems that won’t resolve. Check the bobbin is the correct type for your machine, and that it’s wound evenly. Clear lint from the bobbin race.

Presser foot doesn’t fit. Wrong shank type or attachment method.

Needle keeps breaking. Pulling fabric while sewing, needle too fine for the fabric, or hitting pins.

Where to Go From Here

Related areas:

Frequently Asked Questions

How often should I change my sewing machine needle? Roughly every eight hours of active sewing, and immediately after hitting a pin. Change sooner if you notice skipped stitches, thread shredding, or a popping sound as the needle enters fabric. Needles blunt long before they look damaged.

What needle do I use for knit fabric? Ballpoint or jersey. The rounded tip pushes between the knit loops instead of piercing them, which prevents laddering and skipped stitches. For very stretchy fabric like swimwear, use a stretch needle. A universal needle on knits is a common cause of ruined projects.

Which presser feet do I actually need? Four cover most sewing: the all-purpose foot your machine came with, a zipper foot, a buttonhole foot, and a walking foot. If you’re buying just one extra, make it the walking foot — it solves layer shifting, which affects quilting, thick fabrics and slippery materials.

Will any presser foot fit my machine? No. Check your shank type (low, high or slant) and attachment method (snap-on or screw-on). Most modern domestic machines are low shank snap-on, but Bernina and Pfaff use proprietary systems. Incompatible feet risk needle strikes and damage.

Can I use any bobbin in my machine? No, and this causes more problems than people expect. Bobbins vary in size, height and material, and a near-fit bobbin produces tension faults that are very difficult to diagnose. Use the class specified in your manual.

What thread weight should I use? 50wt for general sewing and quilt piecing, 40wt for topstitching and embroidery, 30wt or heavier for visible decorative work. Higher numbers are finer thread — the scale runs inversely.

Is expensive thread worth it? Yes. Cheap thread sheds lint into the tension discs and bobbin race, and breaks under high-speed stitching. The time lost to rethreading and cleaning costs more than the price difference. Old thread also degrades — inherited thread often snaps.

Do I need to oil my sewing machine? Only if the manual says so, and only where it specifies. Many modern machines have sealed bearings and oiling them does harm. Where oiling is specified, use proper sewing machine oil, never general household oil, which gums up.