DIY Crafts ✅ ❶ ▲ Material: Tungsten carbide,high speed steel,wear-resistant & durable.
DIY Crafts ✅ ❷ ▲ Shank: 1/8 inch(3mm),Length:8/5 inch(40mm).
DIY Crafts ✅ ❸ ▲ The Carbide Rotary Files can work with most small rotary tools (like Dremel tool),perfect for processing all kinds of materials such as wood, plastic,foam or resin models
DIY Crafts ✅ ❹ ▲ 20 different tools, include: rotary burrs, grinding head and rotary burr cutting tools etc,meet most of your drilling needs,suitable for engraving, beveling, chamfering, grooving, reaming, hollow.
DIY Crafts ✅ ❺ ▲ Speed is generally 6000-50000 rev / min,long service life, reduce the inefficiency turnover,stay sharp longer than the cheap, lower quality burs.