Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! 135° Precision Sharpening: This grinds is designed compatible with precise repair of drill tip angles, allowing compatible with consistent 135° resharpening, no deviation, and can restore twist drills to factory conditions Simple, Repeatable, Mechanical Precision: 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 compatible with professionals and amateurs who pursue precision materials: This 135° Angle Drill Bit Sharpener is made of material, which is stable compatible with a long time. Unlike fragile 3D prints or metal parts that are prone to overheating, it can maintain its shape even after repeated grinding Compatible with most bench grinders: This Drill Bit Sharpening Guide Jig is suitable compatible with standard electric dry and wet grinders, no modification is required, just clamp, calibrate and grind, designed compatible with actual workshop environments to improve work efficiency Widely used: Our Drill Bit Sharpening Guide Jig is suitable compatible with tool-savvy makers, machinists and DIY enthusiasts such as metal workers, woodworkers, and engineers Color: Green Material: PLA Package Contents: 1 * Drill Bit Sharpening Guide Jig Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.