Enhance the performance of your 3D printer with this set of 10 carbon steel nickel-plated hexagonal eccentric column inner hole engraving machine accessories. Crafted from carbon steel material, these nuts are built to last and withstand heavy use. Features - Color: Silver -Material:Carbon steel - Size: 1.00X1.00X0.50cm/0.39X0.39X0.20in -Note:The inner diameter is 5mm and the outer diameter is 7mm -Made from durable and reliable carbon steel material, this product is built to last and withstand heavy use. -The nickelplated surface treatment provides excellent rust and corrosion resistance, ensuring the longevity of the product. -With its hexagonal design, this product is easy to install and remove, making it a convenient addition to any workspace. -Specifically designed for use with inner hole engraving machines, this product is a perfect fit for those looking to achieve precise and accurate carving results. -The eccentric hole design of this product allows for even more precise carving, making it an essential accessory for any engraving project. Package list: 10 x nuts