About This Size - The chainsaw sharpening file measures a diameter of 7/32"(5.5mm), a file teeth length of 160mm (6.3-inch) and a total length of 245mm (10-inch). Material - Crafted from high-carbon chromium bearing steel with HRC50-56, fortified by advanced surface heat treatment for great durability, wear corrosion, rust resistance, and lasting performance, making it a useful chainsaw accessories tool. Features - Precision double-cut file design with precision cutting-teeth, enhanced by a meticulous spiral cut, ensures good sharpness for efficient manual saw chain sharpening. Applications - Practical for periodic maintenance of chainsaws to keep the cutting teeth sharp, ensuring smooth cuts and preventing damage to the saw. Widely used in forestry work for quick touch-ups on site, maximizing productivity, also good for home users to maintain their equipment for efficient pruning and tree felling tasks. Note - For optimal results, always clear debris post-filing with a wire brush to maintain clean, sharp teeth on your chainsaw, ensuring continuous good performance.