This rotary file kit is designed with different sizes to meet your different needs. It is made of steel material, durable to use. Provide a multipurpose tool for wood carving, casting, deburring, grinding, etc. It can be your good helper. Features -Color:Black -Material:Steel -Size:6.00X1.00X1.00cm/2.36X0.39X0.39in -Suitable for beginners, DIY enthusiasts and skilled worker to complete hand carving. -The steel rotary file can apply in the mold processing manufacture, inverted round and trench processing. -Can be used on all types of metals, including stainless and hardened steel, as well as wood, marble. -Easy to grasp, easy to use, safe and reliable. Reduces the manual labor greatly, Enjoy your creation! -Including different shapes, can process various surfaces of objects, which fits most other rotary and grinders. Package list: 5 x Rotary Files