the discussion of milled tooth tools is a little off from spokeshaves, but they work very well with them (especially in finishing ends where a spokeshave won't get all the way to the end of a stopped cut).
I've got floats (for planemaking), which are just a straight milled tooth, vixen (which are like a half moon uninterrupted file used mostly for bodywork on cars over here as far as I know), and super shear. There are others, but I haven't tried them.
I try to find all of these used - they're expensive and they do get dull (but can be honed by services that will hone files - I'd imagine there's a liquid honing service in the UK - boggs tool is a well known one here in the states for reference).
With some patience, I can find a super shear for about $10 used (and with good enough pictures to confirm it's not really used), and vixens for $5-$10. The super shear is ideal because I believe it's intended for non-ferrous metals and things of the like, so it's a bit finer than a body file that's intended to be used on broad flat surfaces, and they (super shears) are really sharp. As mentioned, if taken across a narrower area, they can remove material fast, but on a flat area, they can also leave a plane-like polish (including on large areas of end grain).
Not a replacement for spokeshaves or anything else, but a nice addition to - but again, easiest to find used (or NOS unused) else $40 this and $40 that starts to add up really quickly. The new ones are priced for people who charge the expense to clients and can write it off.