While you wait for answers, we may have found some information which could help you.
Click here for Replacement Charger DrillBlade guard?
Replacement Spool Cover Challenge Extreme Grass Trimmer Product?
what is the sparkplug gap setting?
Where can I obtain a charger for a Challenge Xtreme 18volt cordless trimmer?
where can i get a replacement strimming head for a challenge grass strimmer?
where do I get 18v battery for Challenge Strimmer DCSRT18?