Drill Bit Sharpening Guide Jig presents simple, repeatable, mechanical precision for sharpening drill bits without electronics or complex settings. Just position, hold, and grind to achieve repeatable and accurate results every time. Suitable for professionals and amateurs who pursue precision. No electronics or complicated adjustments; straightforward setup for quick, repeatable sharpening. Note: slight color variation may occur; this does not affect performance. materials: built for longterm stability. The 135° Angle Drill Bit Sharpener stays stable over time and maintains its shape after repeated grinding. 135° precision sharpening: designed to precisely drill tip angles, enabling consistent 135° resharpening with no deviation, restoring twist drills to factory conditions. Use scenarios Workshop maintenance: keep your set of twist drills sharp for metalworking and woodworking projects, ensuring clean cuts and efficient drilling. DIY and home projects: easy, reliable resharpening to extend the life of common twist drills used for various tasks around the house. Onsite or training environments: portable, electronics sharpening solution for demonstrations, classes, or field service where consistent 135° sharpening is required.