Perma-Grit Set of 5 Needle Files with Colleted Handle NF-1H PermaGritPerma Grit Set of 5 Needle Files with Collated Handle NF 1H This indispensible set of 5 permagrit small needle files will provide the right tools for the job for a wide range of trimming, fettling and finishing tasks on a range of composite materials; especially carbon fibre (CFRP) and fibreglass (GRP FRP) where we find Perma Grit tools to be unrivalled in terms of cut speed and quality. Like all tools in the Perma Grit range, the needle files in this