What type of string does this trimmer use? This trimmer uses 0.063in. (1.6 mm) diameter nylon line, available to purchase here in pre-wound spools. Related articles What size trimmer line does my Shredder Joe SDJ616 use? Can I power this unit 24V-X2-SB15 with my 24VBAT-XR8? Does the Battery 24VBAT-XR12 work with all 24-Volt Tools? How do I change the tines on my TJ604E Tiller/Cultivator? What are the best uses for the Heat Gun attachments?