BERNINA L660 Air Threader OverLock Machine

Achieve Unmatched Garment Finishes with the All-New BERNINA L 660 Overlocker at World Weidner

Discover the pinnacle of edge-finishing, seam construction, and creative utility with the all-new BERNINA L 660. Expertly engineered to combine maximum sewing comfort with precision Swiss-designed technology, this premium overlocker makes serging effortless and lets you keep your focus entirely on the beauty of your creations. From high-stretch activewear to delicate, rolled-edge silk scarfs, the L 660 delivers pristine stitch formation with a smooth, whisper-quiet operation that BERNINA is world-renowned for. World Weidner is proud to showcase this next-generation machinery, providing you with full dealer backing and lifetime technical expertise.

The BERNINA L 660 introduces advanced features designed to make threading and machine setup completely stress-free. The illuminated One-Step BERNINA Air Threader effortlessly shoots looper threads through the machine in seconds, while the built-in needle threader and color-coded threading paths simplify your preparation. With 18 specialized built-in stitches, total stitch control, micro thread adjustments, and the ergonomic BERNINA Free Hand System (FHS), you can manage heavy denim, multi-layered wools, or ultra-thin knits with commercial-grade speed and accuracy. Bring couture-level garment finishing directly into your workspace.

Only available at the World Weidner Creative Center in Oklahoma City. Visit us for an in-store demo!

Machine Specifications

Warranty & Support Peace of Mind: As an officially authorized BERNINA dealer, World Weidner guarantees that your brand-new L 660 is backed by a full manufacturer's warranty. Your purchase includes lifetime expert technical support, maintenance assistance, and project troubleshooting from our factory-trained specialists.

Main Features & Creative Benefits

Illuminated One-Step BERNINA Air Threader
Setting up your overlocker is no longer a multi-step chore. The illuminated One-Step BERNINA Air Threader automatically feeds looper threads through the entire machine with a quick puff of air. This is perfectly paired with an innovative magnetic all-in-one looper cover, allowing for incredibly fast, clean, and intuitive threading preparation so you can jump straight into your projects.

Ergonomic Handling with the Free Hand System (FHS)
Maintain total fabric alignment with your hands firmly on your workspace. The BERNINA Free Hand System (FHS) allows you to raise and lower the presser foot using the specialized knee lifter lever. Doing so automatically drops the feed dogs, providing ample physical clearance to insert or extract heavy projects, batting layers, or thick sweater trims without snagging fine fabric fibers.

Complete User Control & Custom Dimmable Workspace
Adapt the machine precisely to your sewing style. Manage stitching speed stitch-by-stitch with the specialized foot control (complete with programmable needle up/down back-kick function) or by setting the dedicated speed slider on the front panel. Customize your presser foot pressure for delicate silks or thick fleece, and adjust the dimmable LED sewing light to establish the perfect working atmosphere.

Pristine Fabric Edges with Micro Thread Control (mtc)
Experience Total Stitch Control on every textile. The integrated Micro Thread Control (mtc) allows you to manually adjust the looper thread volume to lay flat against the fabric's raw edge, eliminating thread loops and wavy seams. Combined with the stepless differential feed system, even highly elastic knits or delicate materials remain perfectly smooth, flat, and wave-free.

Magnetic Tool Docking & Organized Accessory Storage
Keep your essential workspace tools close at hand. The L 660 features a strong built-in magnetic tool holder, securing your tweezers, scissors, or needle wrenches directly on the face of the machine. For a clean sewing desk, tuck your accessories neatly into the custom-fitted accessory box with its integrated tool-insert lid.

Spacious Bed Design & Outside Knife Control
Enjoy a spacious, bright sewing area with a compact, home-studio-friendly footprint. The robust slide-on extension table provides extra width to smoothly guide bulky or heavy projects under the needle. Easily adjust your stitch cutting width from 3 mm to 9 mm, or deactivate the trimming blade completely from the outside of the machine for decorative flatlocks.

What's Included with the Machine?

Why Buy From World Weidner?

Purchasing your dream BERNINA L 660 from World Weidner guarantees a premium creative partnership from the very first stitch. As an authorized BERNINA dealer, we verify that your machine has been handled with maximum care and is backed by a full manufacturer's warranty and our factory-trained technical support. To help you customize and expand your serging setup, World Weidner carries a massive inventory of compatible accessories, including specialized serger presser feet, heavy-duty overlock needles, premium-grade serger cone threads (such as Maxilock or Metrosene), decorative stretch threads, wooly nylon, fabric trimmers, and other essential serging notions to help you achieve perfect, runway-ready finishes.

• 60-Day Money-Back Guarantee: We offer a generous 60-day full satisfaction and money-back guarantee for risk-free shopping on your machine.*
• Low Free Shipping Threshold: Enjoy free shipping within the contiguous United States on all qualifying orders over our low minimum threshold.
• Fast Order Delivery: Orders ship quickly from our central Oklahoma warehouse, usually arriving at your doorstep within 1 to 4 business days.
• Loyalty Rewards Program: Earn 5% back on every purchase online and in-store. These points can be saved up and redeemed for discounts on anything we carry.
• Referral Bonus Perks: Take advantage of our "Give $10, Get $10" program that rewards both you and a friend with coupons for future orders and accessories.
• Interest-Free Financing: We partner with popular payment platforms to offer flexible, interest-free installment payments at checkout so you can start creating today.
• Full Manufacturer Warranties: As an officially authorized dealer for every brand we carry, all machine purchases include valid, robust factory warranty coverage.
• In-House Customer Support: Our dedicated, knowledgeable team, including factory-trained service technicians, is available by phone, live chat, or email to assist with machine setup, scheduled maintenance, and project troubleshooting.
• Massive Interactive Showroom: Check out our 18,000-square-foot physical Creative Center in Oklahoma City for hands-on machine testing, direct support, and community classes.