tfir

Any cheapo set will do the job, I tend to use the flat rectangle one. when it clogs up just run the blade up and down it to clean off the old pieces of film. With the set you can pick the ones you feel more comfortable using.
 
https://www.ebay.co.uk/itm/10Pc-QUALITY-NEEDLE-FILE-SET-DEBURR-THIN-SMALL-LARGE-SQUARE-ROUND-WOOD-METAL-/173372576073
 
https://www.ebay.co.uk/p/Amtech-E1650-Needle-File-Set-140mm-10pc/2035284644?iid=131823387810
 
Homebargains, B&Q, not worth buying anything fancy.
 
Rob
 
 

It's a defogging sensor. Here's the spec from my glass suppliers online.
 
HYUNDAI TUCSON 5J 2015 ^WINDSCREEN CLIP 1X / CLIP 9X / DEFOGGING SENSOR / DROP DOWN BAND / GLASS COLOR - GREEN / BOSS METAL TRAPEZOID GUIDANCE OUTSIDE / ACOUSTIC / PIN 2X / SILKPRINT 4/4 / SPACER 12X / SPACER 1X / TOP TINT - BLUE / VIN / RIGHT HAND DRIVE