USB Rechargable Engraving Pen with 58Bits,DIY Engraving Tool Kit for Carving Wood Jewellery Glass Metal Plastic Easy to Use
£44.99[Portable & Easy to Operate] The precise grinding engraver is only 21.5 cm (8.46 inches) long, so you can put it in any of and clothing pockets. You can switch and adjust the speed with one key, there are 3 gears in total, the speed of 1-3 gears is 5000-10000-18000 Rpm/Min, you can choose aording to your needs.