3-Jaw Lathe Chuck, 6-Inch Self-Centering, Reversible Jaws

3-jaw self-centering lathe chuck delivers fast, repeatable workholding so you can machine round stock with less setup time. Built for lathes, milling, drilling, and machining centers, it uses a scroll-driven jaw system to center parts as you tighten. Reversible internal/external jaws expand the clamping range from small components to larger workpieces, while hardened steel contact surfaces support consistent gripping in daily shop use.

• Delivers self-centering clamping to reduce dial-in time and improve repeatability across parts.


• Fits internal and external gripping with reversible jaws for 3.5–160 mm (0.14–6.3 in) range.


• Includes T-key drive and fixing screws for straightforward tightening and jaw adjustment.


• Supports precision work with ≤0.05 mm (0.002 in) bearing tolerance and smooth scroll action.


• Handles shop duty with HT300 body, hardened 20Cr jaws (≥53 HRC), and 40Cr scroll (≥45 HRC).

When accuracy depends on stable workholding, a scroll-style chuck helps you keep parts centered and secure through turning, facing, and drilling operations. This 6-inch chuck is oil-coated for added corrosion protection and built with a compact, service-friendly structure for easy installation and daily adjustments. Use the internal jaws for smaller diameters, flip to external jaws for larger stock, and lock in your setup with the T-key. Grab yours today and keep your workflow moving with dependable, repeatable clamping.

• Chuck type: 3-jaw self-centering, reversible jaws (internal & external)


• Chuck OD: 6 in / 160 ± 5 mm


• Clamping range (internal jaws): 3.5–60 mm (0.138–2.36 in)


• Clamping range (external jaws): 56–160 mm (2.2–6.3 in)


• Body material: HT300


• Jaw material/hardness: 20Cr, ≥53 HRC


• Scroll material/hardness: 40Cr, ≥45 HRC


• Bearing tolerance: ≤0.05 mm / 0.002 in


• Bore: φ45 mm


• Surface finish: Ra ≤0.8, oil coated


• Fixed thread: 3 × M8


• Product size: φ160 × 140 mm


• Net weight: 17.8 lb / 8.1 kg