Challenge: SRT350B. Powerbase: 220W, 250W (pre 2011), 350W (pre 2011), DCSRT18v Cordless, LRT250B, M1GZP250, M1G-ZP-250, SRT350B. Compatible ALM for Challenge, Co-Tech, Einhell, JCB, NuTool, Power Glide, Powerbase, Powerforce, Sovereign, Tesco, Wolf Garten Spool & Line & Spool Cover (PD451).
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