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Made of durable nickel plated metal face and plastic body
Cutting edge with double side cutting spurs of for durable and quick drilling effortlessly
For use in Steel
Overall Size: 47mm x 22mm (L*Hex W)
65mm x 180mm Speaker Port Tube Subwoofer Bass Reflex Tube Bass Woofer Box 4pcs Anti-slip Pads Made of durable nickel platedFeatures: Speaker Port Tube is used to improve the bass response of many types of speakers. There are plenty of types to help you with your vented box design, and carries tubes of every shape and size, including adjustable length ports and flared ports. These port tubes are a reliable, convenient installation, while at the same time providing a finished, "pro" look to your bass reflex speaker building project. Normal tubes suffer from nasty turbulence
