Chain-driven drill bit for trenching.

The Chain-Type Drain Cleaning Nozzle is a professional drain cleaning nozzle that helps clear tough blockages in high-pressure drain cleaning applications by combining water jet cleaning with a mechanical impact/stripping effect thanks to its chain mechanism. The rotating/chain movement breaks down limescale, hard sediment, fibrous structures like roots, dense grease layers, and sticky mud more quickly; it delivers particularly powerful results on "hardened" and long-standing dirt.

Technically, the chain-driven drill head cleans the line with high-pressure water jets, while the chain(s) at the tip make controlled contact with the pipe wall, creating a drilling-scraping-stripping effect. This structure breaks and loosens the hard layer on the pipe surface; rear jets then drag the resulting fragments backward, helping to open the line. The heavy-duty housing and wear-resistant material selection ensure a long service life under intensive use (with appropriate pressure/flow rate and correct pipe material selection).