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Toolstation used to offer the Wera Gold torx bits individually. Sadly no longer in their catalogue, only PH & PZD. Those I have not mislaid still work well.
The torx HF variant, (I've only ever seen them in the Wera catalogue), must be slightly chamfered to give the improved hold.The Philips screws I was gifted are Outdoor versions with a green coating, as I said, yet to be used. The accompanying bit does have the bulbous nose you reference.
Landscaping works with treated timber means I never have to use an impact driver.
Screws of choice: ToolStation Forgefast torx, but I seldom use the included generic torx bit.
Found the Wera PH/PZ drive bits aren't amazing, Dewalts higher tier bits certainly last longer and don't fail spectacularly early (some Wera and Bosch blue that I've had in Ph2 for plasterboard and others have literally exploded within a few screws use).
Wera do make excellent manual screwdrivers though, PH1 + Ph2 + pz2 common sizes will hold screws as you walk around the room deciding what your going to screw it into. Think the 'lazer tip' is what makes the difference in fit, very snug.
'THE' philips screw company screws (red + yellow box?) are fantastic, have become my go to every time I'm at buildbase. Come with their own bits depending on size and you can hang a milwaukee m18 impact + 5 amp off them on a wall even once its done a few hundred of them. Weirdly the supplied bits 'look' like a conventional philips, but do not work in other brands philips or pozi screws, nose is too fat. But you CAN drive 'THE' philips screw company screws with a regular PH or PZ bit, kind of weird. Also can think of very few that have ever snapped or rounded.
Stay well clear of Screwfixs own brand screws (maybe the top ones are OK), and 'DIALL' branded screws and wall fixings from B*Q (sort of the same company), they are not made from metal, instead some kind of flour mixed with used plastic maybe.