Material: metal and artificial diamondFixed part length: 3.5 cm (of which fixed part: 2 cm)10 bladesDial diameter: 20 mmEvery DIY enthusiast will be satisfied with these mini grinders! They cut and trim almost all materials.descriptionYou will get 10 grinding wheels and two mounting parts.Dial thickness: 0.6 mmCompatible with all drill bits that use chuck fixing tools2 fixing Will you a piece of wood or carve a hole? The grinding wheel can grind almost all materials.The advantage is that they are compatible with all drill bits that use chuck fixing tools.Clamping diameter: 3 mmApplication: Cutting various materials: wood, glass, plastic, metal, , masonry, stone, etc.