KP2-3/4 Lathe Chuck, 4-Jaw 2.75" Diameter, Metal Lathe Chuck Turning Machine Accessories, Self-centering Tool, for Lathe, Precision Machining,

KP2-3/4 Lathe Chuck, 4-Jaw 2.75" Diameter, Metal Lathe Chuck Turning Machine Accessories, Self-centering Tool, for Lathe, Precision Machining, Grinding Machines, Milling Machines Exceptional Durability Exceptional Operating Precision The Flexibility of Adjustable Jaws Easy-to-Get-Started User Experience Versatile Single Jaw Widely Use Clamping Range (Inner): 1.18-1.85 inches (30-47 mm),Outer Diameter Runout: 0.15 mm,Test Bar Radial Runout: 0.40 mm at a distance of 50 mm,Surface Treatment and Color: Ra1.6, chrome-plated natural color,Test Ring End Face Runout: 0.15 mm,Model: KP2-3/4,Support Range (Outer): 1.5-2.24 inches (38-56 mm),Chuck Internal Thread: 1*8TPI,Product Dimensions: 70 x 65 mm,Chuck Outer Diameter: 2.75 inches / 70 mm,Net Weight: 3.2 pounds / 1.47 kg,Main Material: 45#