WFLNHB K11-100 4 Inch 3 Jaw Self Centering Lathe Chuck for CNC Drilling Milling Machine($82.81Value)

Description

Suitable for 4-inch / 100mm lathes, featuring a center bore diameter of 22mm, thickness of 55mm, and bolt circle diameter of 84mm. With radial runout as low as 0.002 inches, its fundamental dimensions accurately accommodate diverse machining scenarios. The accessory set includes the chuck body, 3 inner jaws, 3 outer jaws, 3 mounting bolts, and 1 chuck wrench—a complete one-stop solution. Dual-stage clamping with inner jaws: small range 2-30mm, large range 30-90mm. Outer jaws clamp 30-80mm, covering diverse bar stock and part machining needs while accommodating both internal and external clamping operations. Repeat positioning accuracy ≤0.03mm with minimal concentricity error, strong clamping force, and excellent radial runout control. Delivers high machining accuracy to meet high-accuracy machining requirements. Center bore design enables direct machining of bar stock. Supports jaw replacement with flange connection structure and dedicated wrench for efficient operation. Suitable for various machinery, offering outstanding versatility. Chuck jaws are made of fully quenched 45 steel, featuring a soft interior and hard exterior. The jaw surfaces incorporate non-slip design for stable and non-slip clamping. The housing is crafted from excellent steel through high-accuracy machining, resulting in a smooth. The refined manufacturing process ensures a long service life.

Lathe Chuck:

Diameter: 100 mm (3.94")

Center Hole: 22 mm (0.866")

Thickness: 55 mm (2.16")

Bolt Circle Diameter: 84 mm (3.31")

Runout: 0.002"

Internal Jaw Clamping Range (A-A1): 2-30 mm (0.078"-1.18")

Internal Jaw Jamming Range (B-B1): 30-90 mm (1.18"-3.54")

External Jaw Clamping Range (C-C1): 30-80 mm (1.18"-3.15")

Package Includes:

1 X 100 mm/4 Inch Lathe Chuck Body

3 X Internal Jaws

3 X External Jaws

3 X Mounting Bolts

1 X Chuck Key