Features: The E108 3Speed Rechargeable Engraving Pen features adjustable low/m/high setting for precise control across materials, combining cordless convenience with USB powered operate for ultimately crafting flexibility. Crafted from aluminum alloy with ergonomic grip design, this rotary tool set includes multiple engraving bit for detailed carving, polishing, and grinding tasks in various projects. Ideal for jewelry , enthusiasts, and professional craftsmen seeking a versatile engraver for delicate metalwork, woodcarving, or intricate glass etching applications. Perfect for workshop projects, home renovations, and artistic creations requiring precise on materials like plastic, eggshells, or metal surfaces with minimal vibrations and easy handling. Complete with interchangeable coated accessories, this multipurpose engraving tool ensures efficient removal and smooth finishes for both hobbyist experiments and industrial grade applications. Specifications: Component: Aluminum alloy Size:Approx.180x30x30mm/7.08x1.18x1.18inch Use: Press 1gear once in 2seconds, press 2gears 2times, press 3gears, and press shut down after more than 2seconds after starting. Use scenario: Jewelry Making,Art Creation; Package Includes: 1set/83pcs Engraving Pen note: Please allow 1-10mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.