Speed Feed 400 Head
A dual-line bump-feed trimmer head with a pre-wound spool system, aimed at owners who want fast reloads without hand-winding line.
You'll be sent to Amazon in your country. Indicative price — live, localised pricing where available. As an Amazon Associate we earn from qualifying purchases.
Pros
- Pre-wound spools make reloading quick when line runs out mid-job
- Dual-line feed cuts a wider swath per pass than single-line heads
- Adaptor kit covers most common trimmer shaft threads
Cons
- Housing is plastic, not metal — less durable than pro tap-feed heads
- Pre-wound refill spools cost more per metre than bulk line
- Bump mechanism can wear looser than genuine OEM heads over time
What it does
The Speed Feed 400 is a bump-feed (tap-and-go) trimmer head built around a two-piece spool system. Instead of winding line by hand every time it runs low, you drop in a pre-wound replacement spool and you’re back to cutting in under a minute — useful if you’re working through a long hedge line or a big lawn and don’t want to stop and thread line by feel. You can still hand-wind your own line onto the spool if you’d rather buy line in bulk and skip the pre-wound cartridges.
Like most bump heads, tapping the head on the ground while the trimmer is running releases a little more line as the old ends wear away, so you don’t need to stop the engine to top up cutting length.
Fitting it and its limits
This head ships as a universal fit with a small kit of thread adaptors, so it’s aimed at trimmers where the original head has worn out or you want to switch a non-branded machine over to a dual-line bump system. Before buying, check your trimmer’s output shaft thread (common sizes are M10, M8, or a splined fitting) against the adaptors included — a universal kit won’t cover every machine, and pro-brand shafts sometimes use a proprietary thread that needs the maker’s own head.
It takes line up to around 3.0 mm, which suits everyday grass and light weeds on a mid-size electric or petrol trimmer. It’s not designed for anything beyond that: don’t fit a blade to it, and don’t expect it to shrug off dense brush or brambles the way a metal 3-tooth blade would.
Being a polymer housing rather than a metal gearcase head, it’s lighter and cheaper than genuine OEM tap-feed heads, but the bump mechanism and spool retainer will wear faster with heavy daily use. For occasional-to-regular garden work it’s a sensible, low-cost way to get faster reloads than a basic single-line head; for all-day professional use, a metal OEM head will last longer.