A:  Hello, Darlean - Thank you for your question. Yes, the AC052N1 is compatible with all RYOBI 18v auto-feed trimmers. I hope this helps! Additionally, if you need further support, then a RYOBI Customer Experience Professional is here for you, Monday - Friday from 9 am to 6 pm (EST) when you call or text us at 1.800.525.2579 or through email or live chat when you visit us at https://www.ryobitools.com/support/contact. And thank you again for your interest in the ONE+ 18V 10 in. Cordless Battery String Trimmer (Tool Only). - Jewel

A:  Press the two grey buttons at the same time and you will be able to get the spool out.

A:  Hello, Ryboi - Thank you for your interest in the ONE+ 18V 10 in. Cordless Battery String Trimmer with 1.5 Ah Battery and Charger. To replace the line; Remove the battery pack. Remove the spool from the string head. Remove any old line remaining on the spool. Cut a piece of line approximately 9 ft. long. Use only 0.065 in. diameter round or 0.065 in. twisted monofilament line. Insert the line into the anchor hole in the upper part of the spool. Wind the line around the upper part of the spool clockwise, as shown by the arrows on the spool. Place line in the slot on upper spool flange, leaving about 6 in. extended beyond the slot. Do not overfill. After winding the line, there should be at least 1/4 in. between the wound line and the outside edge of the spool. Replace the plastic retainer, spool, and the spool retainer. Refer to Spool Replacement earlier in the manual.  Additionally, if you need further support, then a RYOBI Customer Experience Professional is here for you, Monday - Friday from 9 am to 6 pm (EST) when you call or text us at 1.800.525.2579 or through email or live chat when you visit us at https://www.ryobitools.com/support/contact. I hope this helps! --Jewel

A:  It is not clear what this person is asking - if they are asking about replacing the weedeater "string" - I turn it upside down, rest it lighting against my body, and then pull the unit off while pressing the two side panels. Sometimes it is helpful to have someone else hold the unit so that you won't have to balance it at the same time you are placing the weedeater string

A:  Hello, Toby - Thank you for your interest in the ONE+ 18V 10 in. Cordless Battery String Trimmer with 1.5 Ah Battery and Charger. No, you should not use a metal blade on any of our trimmers.  Additionally, if you need further support, then a RYOBI Customer Experience Professional is here for you, Monday - Friday from 9 am to 6 pm (EST) when you call or text us at 1.800.525.2579 or through email or live chat when you visit us at https://www.ryobitools.com/support/contact. I hope this helps! --Jewel

A:  It is a fixed length and cannot be adjusted.

A:  Hello, Major - Thank you for your interest in the ONE+ 18V 10 in. Cordless Battery String Trimmer. this tools assembled length is 44 in.  Additionally, if you need further support, then a RYOBI Customer Experience Professional is here for you, Monday - Friday from 9 am to 6 pm (EST) when you call or text us at 1.800.525.2579 or through email or live chat when you visit us at https://www.ryobitools.com/support/contact. I hope this helps! --Jewel