This chainsaw chain tensioner screw is designed to provide precise adjustment for your chainsaw's guide . Made from durable metal, it ensures performance and reliability. Ideal for both professional and DIY users, this tensioner screw helps maintain optimal chain tension, enhancing the efficiency and safety of your chainsaw during operation. Features -Color:Black -Material:Iron -Size:4.00X1.50X0.70cm/1.57X0.59X0.28in -Precision design: the guide screws are precisely designed to different models of chainsaws, ensuring secure installation and smooth operation -Easy adjustment: the adjustment screws allow for convenient positioning of the chainsaw guide , making it easy to achieve the desired tension -Chain tightness: the tensioner screws ensure the tightness of the chainsaw chain, providing optimal performance and safety during use -Versatile use: suitable for both electric and gasoline chainsaws, offering multifunctional application for various chainsaw types -Durable and reusable: made from durable materials, these screws are durable and can be reused multiple times without damage Package list: 10 x Chainsaw Chain Tensioner