Looking to keep your lawn in top shape with ease and precision? Whether you're a weekend warrior or a seasoned pro, STIHL has the right grass cutting tools and mowing lines to help you get the job done efficiently.
In this guide, we’ll walk you through the different types of cutting tools and trimmer lines available, explain what makes each one unique, and help you choose the best options for your garden or landscaping needs.
For the ideal cutting tool and machine pairing, speak with your local STIHL Dealer to find the attachment best suited to your Grass Trimmer or Brushcutter.
STIHL offers a versatile selection of mowing heads engineered to handle everything from precise edging to tough vegetation, delivering reliable performance and long-lasting durability across all cutting conditions.
| Benefit & Use | AutoCut | SuperCut | TrimCut | PolyCut | DuroCut | FixCut |
| Description | Semi-automatic head that feeds line when tapped on the ground. Easy to use and versatile. Available in easy reload C model option. | Fully automatic line adjustment to optimal length. Minimizes manual intervention to extend line. | Manual feed head where line is adjusted by hand. Simple and durable design for precise line extraction. | Uses replaceable polymer blades or optional line. Offers a flexible alternative to metal blades. | Fixed-line head that uses pre-cut, serrated line pieces. Quick to reload and very durable. | Fixed-line head with no automatic feed. Line is manually inserted and held firmly in place. |
| Best suited application | General trimming and edging on lawns and around obstacles. | Consistent, precise trimming in well-maintained areas. | Controlled trimming in smaller areas or where automatic feed isn’t needed. | Thick grass, light brush, and areas with obstacles like rocks or fences. | Tough vegetation, tall weeds, and fibrous plants. | Heavy-duty clearing where maximum reliability and minimal downtime matter. |
| Ease of reload | Very easy. No dissassembly required for C models. | Medium. Head dissassembly required. | Medium. Head dissassembly required | Easy. Tools required to dissassemble. | Very Easy. No tools or dissassembly required. | Easy. No tools or dissassembly required. |
| Cutting type | Nylon line | Nyline line | Nylon line | Plastic flailing blades | Serrated nylon line pieces | Pre-cut nylon line lengths |
| Nylon line diameter available | 1.6mm - 3.3mm | 2.4mm - 2.7mm | 2.4m - 3.3mm | Plastic Blades 1.6mm - 2.7mm nylon line fitment also available |
2.0mm - 4.0mm | 2.4mm - 3.3mm |
| Line outputs | 2 | 2 | 2 | 2 | 2 & 4 | 2 & 4 |
STIHL offers a range of mowing line types designed to suit different cutting tasks, from light trimming to heavy-duty clearing, ensuring optimal performance and durability for every job.
| Benefit & Use | Round | Round (quiet) | Square | X-Line | CF3 Pro |
| Description | Multi-purpose line that resists fraying and welding. |
Sprial grooves in the line reduce the wind noise significantly. | Square shaped nylon line has sharper cutting charecteristics compared to round nylon line, however wears down slightly faster. | X-shaped profile allows the line to grip and cut through tough vegetation with a high wear resistance. | Extremely durable and resistance, 3-component line made from polyamide in a twisted shape profile. |
| Noise Rating | Medium | Low | Medium/High | Medium | Low/Medium |
| Best suited application | Used for everyday trimming and edging. | Best suited for noise sensitive areas and battery grass trimmers in place of standard round line. | Line sharp edges, slice cleanly through dense grass and weeds and suitable for professional use. |
Best suited for professional and farm owners cutting a variety of grass types. | Made for demanding clearing work in professional applications. |
| Diameters available | 1.6mm - 4.0mm | 2.0mm - 2.4mm | 2.4mm - 3.3mm | 2.4mm - 2.7mm | 2.0mm - 3.3mm |
For tougher vegetation, STIHL offers metal cutting blades compatible with suitable brushcutters. Fitting metal blades is available on most straight shafted STIHL Brushcutters, however please see your local STIHL Dealer to ensure the correct guard is fitted prior to use.
| Benefit & Use | Grass cutting blade | Brush knive | Scratcher blade | Chisel blade | Circular saw blade | Shredder blade |
| Description | Lightweight, multi-tooth metal blades designed for mowing thick, dry grass and light vegetation. |
Triangular or star-shaped blades with fewer, broader cutting edges. Built for tougher vegetation. | Multi-tooth blades with serrated or jagged edges that "scratch" through dense material. | Heavy-duty blades with chisel-shaped teeth, similar to circular saw teeth. | Steel blades with fine or coarse teeth, resembling a woodworking saw blade. | Blade system that shreds material rather than slices and is best used in an up/down motion. |
| Best suited application | Dense grass, dry weeds, and light undergrowth. | Brush, tough weeds, and light saplings. | Thick brush, brambles, and tangled undergrowth. |
Woody shrubs, saplings, and small trees. | Cutting through hardwood, dense thickets, and small trees. | Thick, fibrous vegetation, reeds, and overgrown areas with mixed materials, such as blackberries. |
| Cutting width available | 230mm - 250mm | 250mm - 350mm | 200mm | 200mm - 225mm | 200mm - 225mm | 270mm - 320mm |
| Cutting teeth/blades available | 2, 4, 8 & 40 | 3 | 80 | 24 | 22, 24 & 36 | 2 |
| Cutting tooth materials available | Steel & Tungsten | Steel & Alloy | Steel | Steel | Steel & Carbide | Steel |
| Arbor size available | 20mm & 25.4mm | 20mm & 25.4mm | 25.4mm | 20mm & 25.4mm | 20mm & 25.4mm | 20mm |
No matter the task, light trimming, heavy clearing, or precise edging, having the right cutting tool makes all the difference. STIHL offers a wide range of blades, heads, and accessories designed to match your vegetation type and working conditions. Explore the options below to find the perfect fit for your brushcutter or trimmer.
For precise trimming and clean edges around your home, STIHL’s mowing heads offer convenience and control. Whether you're tidying up garden beds or maintaining lawn edges, these tools make the job quick and easy.
AutoCut Mowing Heads
With a semi-automatic line feed, AutoCut heads like the C 4-2 and C 26-2 release line with a simple tap, ideal for consistent trimming on uneven ground or around obstacles.
PolyCut Mowing Heads
Available in 2-2, 3-2, and 6-2 versions, PolyCut heads use durable polymer blades for a clean cut and are perfect for edging near hard surfaces. They’re a great alternative to line heads when you need more durability and precision.
AutoCut Mowing Heads
Automatically fed line continuously feeds nylon line until the optimal length is acheived. This means you can mow efficiently and quickly whilst being able to fit a variety of mowing lines to suit your application. The SuperCut 20-2 is ideal for mowing and clearing edges, around trees and along walls.
For everyday trimming of grass, weeds, and nettles, mowing heads with thicker line usually do the trick. But when line wear becomes an issue, STIHL’s PolyCut and DuroCut heads offer a more durable and efficient alternative.
These flexible polymer blades provide a clean cut similar to a metal blade but are safer around obstacles. Ideal for general trimming and light brush, they’re easy to replace and gentle on hard surfaces.
Designed for tougher vegetation, the DuroCut head uses pre-cut, serrated line pieces up to 4mm thick. It’s perfect for cutting through tall grass, nettles, and even some woody weeds with ease.
For dense grass, paddock maintenance, and weed-heavy areas, metal grass cutting blades are the go-to solution. With sharp edges and low vibration, they slice through thick stems cleanly and efficiently, ideal for long sessions and large areas.
This lightweight blade is perfect for general clearing of thick grass and light scrub. Its simple design offers fast, clean cuts with minimal resistance.
A versatile option for heavier vegetation, the 4-tooth blade delivers a balance of cutting power and control, great for paddocks and overgrown areas.
Designed for more demanding tasks, the 8-tooth blade handles dense weeds and tough grass with ease, offering a smoother finish and reduced vibration.
The GrassCut 250-32 is a specially designed cutting blade which has a low centrifugal force, meaning it has low throw properties. This blade is perfect for us around fragile environments where flung items like stones and gum nuts can cause damage to windows, cars and glass houses. This upgrade kit includes a high-performance blade and mounting hardware, making it easy to boost your brushcutter’s capability for heavy-duty work.
When clearing thick, woody vegetation or tangled brambles, a more robust cutting tool is essential. STIHL’s brush knives and shredder blades are designed to handle dense undergrowth with ease. Their up-and-down cutting motion helps mulch material as you go, reducing volume and preventing tangles, especially useful in stubborn, gnarly growth.
The STIHL Brush Knife is a durable, three-blade tool ideal for cutting through reeds, thick grass, and tough scrub. Its efficient slicing action makes it perfect for clearing overgrown areas while minimising clogging and resistance.
Brushcutters and clearing saws equipped with the right blade can be just as effective as chainsaws for clearing dense vegetation and small trees. STIHL’s range of circular saw blades offers precision, durability, and efficiency, ideal for thinning out scrub, managing plantations, or clearing overgrown areas.
Chisel Tooth Circular Saw Blade
Designed for fast, clean cuts through woody brush and thin trees, this blade works like a horizontal circular saw. Its sharp teeth make it ideal for forestry maintenance and clearing dense undergrowth.
Scratcher Tooth Circular Saw Blade
Perfect for tackling tough scrub and light saplings, the scratcher tooth blade delivers reliable performance in rough terrain. Its rugged design ensures consistent cutting in demanding conditions.
Chisel Tooth HP Circular Saw Blade
With high-performance chisel teeth, this blade offers enhanced cutting power and durability. It’s a great choice for professionals needing efficient, low-vibration cutting in thick vegetation.
Want to switch to a blade on your STIHL brushcutter or trimmer? Watch the videos below for step-by-step instructions on how to attach a cutting blade safely and correctly. It’s quick, easy, and ensures your tool is ready for the job.
For the most accurate advice and to ensure the optimal combination of cutting tool and your specific STIHL Grass Trimmer or Brushcutter model, we recommend consulting your local STIHL Dealer. They can provide expert guidance on the cutting attachment best suited to your machine and the tasks you plan to undertake.
