Intelligent -Off Protection: Rechargeable USB type-C charging metal engraver pen, there is a built-in overload protection chip, when the is too high, it will automatically off to protect it, and prolong the service life of the jewelry engraving machineHigh Speed: The speed of this engraver for metal is about 5000-25000r/min, and different speeds are used to engrave different materials. The engraving pen is lightweight and ergonomically designed to give you precise control and engravingLow Noise: The sound of this cordless is very low when working, even if someone is sleeping, he or she will not feel very noisy. Great for beginners and professionals to use anytime, anywhere to make unique creations that you likeSet of Items: 30 engraving bits, 3 saw bits, 1 connecting stick, 2 drill bits, 1 polish bit, 1 Hex wrench, 4 stencils, and 1 USB charging cable. Meet your engraving needs as much as possibleWide Range of Applications: This etching supports you to Decoration and engrave in any material supplier, such as glass, wood, eggs, plastic, jewelry, ceramics, leather, rings, etc. You can use this for engraving, grinding, polishing, drilling, and cuttingProduct DescriptionIntelligent -off protection: rechargeable USB type-C rechargeable metal engraving pen, built-in overload protection chip, automatic -off protection when the is too high, extending the service life of jewelry engraving machineHigh speed: The speed of this metal engraving machine is about 5000-25000r/min, and different speeds are used to engrave different materials. The engraving pen is lightweight and ergonomically designed to give you precise control and engravingWide range of applications: This etching supports you to Decoration and engrave on any material supplier, such as glass, wood, eggs, plastic, jewelry, ceramics, leather, rings, etc. You can engrave, sand, polish, drill and cut with this Level 3 speedUSB charginglow noiseHigh Standard set: 1pcs engraving pen, 1pc data cable, 30pcs 235 grinding head, 3xstainless steel cutting discs (22mm, 25mm, 32mm), 1pcs 235 post, 2pcs drill bits (10mm, 15mm)Material: Metalcolour: As shownPackage Contents:30 x Engraving Bits3 x saw bits1 x connecting bar2 x Drill Bits1 x polishing bit1 x hexagonal wrench4 x Templates1 x USB charging cableOnly 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.