Precision guide bar alignment: Redresses chainsaw guide rails to a precise 90 degrees, keeping the chain cutting straight, reducing wear on the chain and bar, and improving overall cutting efficiency and tool longevity. Bar rail protection and deburring: Effectively removes burrs from bar rails and reduces rail chipping, helping prevent premature wear and damage to chainsaw components while maintaining cutting performance. Crafted from finest steel with an ergonomic plastic handle for a comfortable grip. Broad compatibility: Designed for use with standard guide bars and suitable for chainsaw models including those compatible with Stihl and Husqvarna. Durable construction and compact size: Made from long lasting steel with an ergonomic plastic handle. The tool measures 11 cm by 6 cm by 4 cm, built to withstand regular workshop use and deliver reliable performance during routine chainsaw maintenance. Practical applications: In the workshop after chain replacement or sharpening, use to realign the guide bar rails to 90 degrees for precise, straight cuts. On site maintenance to deburr rails and reduce chipping, extending bar and chain life during field work. During seasonal maintenance or when preparing multiple saws, ensure standard guide bars remain square and protected for consistent cutting performance.