Description
The STIHL DuroCut 20-2 Head is a fixed, dual-line manual mowing head using 3.0 mm nylon, designed for tough grass and compatible with select FS and FSA machines.
STIHL DuroCut 20-2 Head
The STIHL DuroCut 20-2 Head is a fixed manual line head designed for mowing and clearing tough grass and vegetation. Unlike bump or tap feed systems, you insert pre-cut lengths of nylon line, making it ideal for users who prefer control and simplicity in demanding conditions.
Line specs & capacity
This head uses two line pieces (dual-line configuration). It supports 3.0 mm diameter line for heavy grass and thick undergrowth. The thread length is about 2.2 m when loaded — enough length for solid trimming work without frequent changes.
(This specification is per STIHL’s listing for the DuroCut 20-2 model.) :contentReference[oaicite:1]{index=1}
Compatibility with STIHL machines
The DuroCut 20-2 is compatible with several STIHL brushcutters and clearing saws, including FS 56, FS 70, FS 91, FS 94, FS 111, FS 131, FSA 90, FSA 130, and FSA 135 in typical use. It works best when used with a proper mowing guard or universal guard designed for mowing heads. :contentReference[oaicite:2]{index=2}
User advantages & handling
Because the DuroCut 20-2 head is a manual fixed design, you don’t rely on bumping or tapping to advance line. This gives the user greater precision and less accidental feed during tight trimming. The nylon lines are abrasion-resistant, making them better suited to rugged and uneven terrain where contact is frequent. The simpler head design also reduces parts that can wear or break in heavy use.
Recommended care tip
To increase line longevity and flexibility, soak new nylon line in water for 12–24 hours before use. This hydrates the material and helps reduce brittleness, especially under high-speed friction or in coarse vegetation.
Key Features
- Fixed manual line head — no bump or tap feed mechanism
- Dual-line design using two nylon line pieces
- Supports 3.0 mm line diameter
- Thread length approx. 2.2 m when loaded
- Designed for mowing and trimming tough grass
- Greater control and precision over line usage
- Fits FS, FSA series machines (e.g. FS 56, FS 70, FS 91, FS 94, FS 111, FS 131, FSA 90, FSA 130, FSA 135)



