SIZE: diameter 8"(205mm), 20T large tooth U TYPE brazed-weld. Arbor 1" with 7/8"-20mm-5/8" circular adaptor washer. UNIVERSAL FIT For Circular Arbor. For all circular arbor equipment brand. Carbide tips have 10X life than plan blade, and this 20T super Large Tips can be Regrind at last Three times more,. So totally 3*10=30 times longer life than plan blade. But regrind need skill. If you don't have experience, find others help you. U type brazed tips, make the tips not easy break. 8" blade super light can use on Battery cordless Brush Cutter, Women can use. Carbide tips have 10X life than plan blade, very Sharp can cut 3" small tree. Shrubs are usually rich in oxalic acid, and the saw blade will quickly rust after use. SHUZIYU has been specially added Electroplate anti-rust color prevents oxalic acid from corroding steel plate, you can keep the blade in your storeroom if the blade not use up. SHUZIYU For Premium Quality Only, We started our tool business in 2007,. Supply the best qualtiy tools with very good price. Introducing the LSHUZIYU 8" Brush Cutter Blade, designed for durability and versatility. This blade features a large 20T carbide tip and a 1" arbor with a 7/8"-20mm-5/8" circular adaptor washer, making it universally compatible with all circular arbor equipment brands such as Husqvarna, Makita, and more. The carbide tips offer 10 times the lifespan of a standard blade and can be reground up to three times, providing a total of 30 times longer life. The U-type brazed tips also prevent the tips from breaking easily. This lightweight 8" blade is suitable for battery cordless brush cutters, making it user-friendly for everyone, including women. The blade has an electroplated anti-rust color that prevents oxalic acid from corroding the steel plate, ensuring a longer lifespan for the blade. LSHUZIYU is committed to providing premium quality tools at affordable prices, making this brush cutter blade a must-have for your gardening tools.