We've gotten sparks from our FireSteels using an ordinary shard of glass as a scraper, but tough metals with hard angular edges give the best results by far.
Keep in mind that the spark temperature of a FireSteel.com FireSteel is 5,500° degrees - with repeated use that's enough to change the temper on some metals.
We recommend using our special FireSteel Scrapers (also known as FireSteel Strikers), made from an ulta-hardened metal alloy specially designed to produce excellent FireSteel sparks.
FireSteel.com firesteel strikers are small, lightweight, and will give great gobs of white hot sparks when used on our FireSteels. Keep one of these scrapers with your FireSteel and you can rest assured you have an excellent combination of FireSteel and FireSteel Striker.
Note: these are known as "Strikers" and also as "Scrapers" => exact same item, just different names that people have given them.
We call them "Scrapers" because that is how they are used, you scrape your FireSteel.com FireSteel to produce a robust shower of sparks.
Optimize your FireSteel sparks with genuine FireSteel.com FireSteel scrapers!