Router, planing accessories -6.35mm to 8mm high precision collet chuck adapter cnc tool Highlights generic brand 6.35mm to 8mm high precision collet chuck adapter cnc tool Description: Adopt high quality carbide material, good flexibility and wear resistance. High precision, tight and stable clamping. Made of carbide, processing by heat treatment and precise grinding. Suitable for engraving machine, applicable to different characteristics of bit and chuck tool Good elasticity and abrasion resistance. High and precise clamping force, good gripping stability. Specification: Material: Carbide 6.35mm to 12.7mm: Inner Diameter: 6.35mm/0.25inch Outer Diameter: 12.7mm/0.49 inch 6mm to 12.7mm: Inner Diameter: 6mm/0.23inch Outer Diameter: 12.7mm/0.49 inch 8mm to 12.7 mm: Inner Diameter: 8mm/0.31inch Outer Diameter: 12.7mm/0.49 inch 10mmto 12.7mm: Inner Diameter: 10mm/0.39inch Outer Diameter: 12.7mm/0.49 inch 10mm to 12mm: Inner Diameter: 10mm/0.39inch Outer Diameter: 12mm / 0.47inch 8mm to 12mm: Inner Diameter: 8mm / 0.31inch Outer Diameter: 12mm / 0.47inch 6.35mm to 12mm: Inner Diameter: 6.35mm / 0.25inch Outer Diameter: 12mm / 0.47inch 6mm to 12mm: Inner Diameter: 6mm / 0.23inch Outer diameter: 12mm / 0.47inch 6.35mm to 9.5mm Inner diameter: 6.35mm / 0.25inch Outer diameter: 9.5mm / 0.37inch 6.35mm to 8mm Inner diameter: 6.35mm / 0.25inch Outer diameter: 8mm / 0.31inch 6.35mm to 8mm Inner Diameter: 6.35mm/0.23inch Outer Diameter: 8mm/0.31inch Package Include: 1Pieces Road Bit Chuck Adapter