Metal Bobbins for Industrial Sewing Machine Spools Carft for Singer Sewing Machine Tools

Metal Bobbins for Industrial Sewing Machine Spools Carft for Singer Sewing Machine Tools Description

Solid Electroplated Iron Construction

Made of sturdy iron with polished silver plating, rust-proof, anti-deformation and long service life. Smooth burr-free surface won't scratch or cut sewing threads during high-speed operation.
Smooth No-Hole Flat Side Design
Full solid smooth discs without perforations, stable thread winding, effectively avoid thread tangling, slippage and messy loops, delivers consistent smooth sewing performance for continuous production.
Standard Universal Size
Outer diameter 20mm, height 9mm, single bobbin weight 4.6g. Precise central bore fits most industrial lockstitch flat sewing machines, compatible with most mainstream sewing machine models.
Stable Rotation for Mass Sewing
Precision machined central hole fits machine spindle tightly, no wobble or offset under long-hour high-speed running. Ideal for garment factories, tailor shops, leather processing and DIY sewing projects.
Cost-Effective Replacement Spare Parts
Uniform standard size for easy mass stock and quick replacement. Durable metal structure reduces frequent bobbin replacement cost, perfect bulk accessory for sewing workshop daily use.
Color: As Shown
Material: Metal

Package Contents:
100*Metal Bobbins