They're not exactly cheap Tony. I've had the 40 cc strimmer and its been spot on. Considered getting the Tiller attachment last year then went off the idea. Think it was the £70 that put me off but i might take the plunge now i have a few raised beds, i reckon it will be great to weed these. Tooled up.com were the cheapest or you might drop on a bargain at band q