Designed for professionals, these high-quality Singer Class 66 metal bobbins make thread changes fast and easy while providing stability, durability, and long-lasting performance. For optimal results, pair each metal bobbin with a metal bobbin case to ensure smooth and reliable stitching.

Compatible with select Singer sewing machines, these bobbins feature holes on both sides for easy threading and consistent operation.

Features
Made of durable metal for long-lasting use
Fast thread changes for efficient sewing
Class 66 / 3/8" from top to bottom
Holes on both sides for smooth threading
Recommended to pair with a metal bobbin case
Ideal for professional and home sewing machines
Compatible Machine Models

SINGER: 66-16, 66-9, 99, 185, 192, 247, 503

Specifications
Brand: Universal/Generic
Units: 10 per pack
Material: Metal
Size / Dimension: 13/16" x 3/8"

✔ Free shipping on orders over $99
✔ Ships from our USA (Georgia) office when in stock
✔ Weekly restocking from Japan, China, Bangladesh, and Turkey warehouses
✔ 3–7 business days handling time
✔ Compatible with multiple industrial sewing machines
✔ Carefully inspected before shipment

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⚠️ Please confirm your machine model before ordering