Check the listing for details. SENECA ,SHINSUNG, CAREER , SUMATRA SPANNER WRENCHES. Condition: New. Listed at 12.00 USD. These wrenches are used to remove the retaining rings from the end of your Korean air rifles without damage. There are multiple models of Korean air rifles, but these should fit almost all that are in circulation. The 24 mm is for the older Shinsungs and Sam Yangs, as well as some of the newer rifles.The 34 mm is for the dual tube newer rifles and usually requires a 24 mm in tandem with the 34 The 28 mm is usually for the single tube rifles such as the single tube Dragon Claw and Light Hunter, although the 9mm Ultra uses two 28 mm tubes.The Complete Set is your best value, as you will be able to work on multiple models of Korean Air Rifles in Circulation. Make sure that you measure your tube diameter before you purchase, and you might need multiple wrenches for your gun. Compatible with Dragon Claw, Recluse, Career, Air Venturi, Dragon Claw, and most Korean Air rifles, these wrenches offer reliable performance and durability when tuning or maintaining your gun. Designed to make assembly and disassembly easier, they prevent damage to the retaining rings. Made in the United States, these wrenches are a top rated accessory for any Korean airgun enthusiast.