High quality materials: This 118° Angle Drill Bit Sharpener is made of high-quality material, which is stable for a long time. Unlike fragile 3D prints or metal parts that are prone to overheating, it can maintain its shape even after repeated grinding Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! 118° Sharpening: This grinds is designed for precise repair of drill tip angles, allowing for consistent 118° resharpening, no deviation, and can restore twist drills to factory conditions Simple, Repeatable, Mechanical : This Drill Bit Sharpening Guide Jig does not require electronics and complex settings, just position, hold, and grind, and you can get repeatable and accurate results every time, suitable for professionals and amateurs who pursue Compatible with most bench grinders: This Drill Bit Sharpening Guide Jig is suitable for standard electric dry and wet grinders, no modification is required, just clamp, calibrate and grind, designed for actual workshop environments to improve work efficiency, Manufacturer: Akfldms