Lower Knife (Part #691K) for Merrow Industrial Sewing Machines
Achieve a high-precision, industrial-grade edge with the Lower Knife (Part #691K). This authentic Merrow component is the stationary "anvil" blade of the cutting system, precision-engineered to work in a flawless shear action with the top knife. In high-speed overedge sewing, the 691K provides the stable cutting surface necessary to trim fabric excess cleanly and consistently just before the overedge stitch is applied.

Orders are typically processed within 1–3 business days.

We ship from our Georgia, USA warehouse. If an item is temporarily unavailable in the U.S., we source it through our global supplier network and will notify you of the estimated lead time.

Free shipping is available on U.S. orders over $99.

Once your order ships, you will receive a tracking number by email.

For urgent orders or shipping questions, please contact us before placing your order.

We stand behind the quality of the products we sell.

• Genuine OEM parts are covered by the manufacturer's warranty where applicable.

• Aftermarket and generic parts are covered against manufacturing defects.

• If you receive a damaged, defective, or incorrect item, please contact us within 30 days of delivery.

• Warranty does not cover damage caused by improper installation, misuse, normal wear, or modifications.

If you have any questions, our support team is happy to help before or after your purchase.