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Four-jaw lathe chuck, 80 mm diameter, HT300 cast iron, reversible jaws, T-key included

VEVOR

VEVOR 4-Jaw Lathe Chuck 3 Inch 80 mm K72 80 Model

SKU CH-KW16-CAJ8K

A 3-inch four-jaw lathe chuck made from HT300 cast iron with hardened jaws at 53 HRC and a scroll plate at 45 HRC, clamping 0.1 to 3.15 in internally and 1.18 to 3.15 in externally

  • TypeOther Appliances
  • Width6.1
  • HT300 cast iron with 53 HRC jaws resists wear
  • 45 HRC scroll plate maintains accuracy over time
  • 1-3.15 in clamping range suits diverse workpieces
  • Reversible jaws enable internal and external gripping
  • T-key included for quick installation

Three-Inch Independent Chuck

The VEVOR K72 80 is a 3-inch 4-jaw lathe chuck built from HT300 cast iron for wood and metal turning. Independent reversible jaws give a clamping range of 0.1-3.15 in internally and 1.18-3.15 in externally. A 22 mm through-hole and supplied T-key complete the package for machinists who need flexible work-holding.

Hardened Jaws Resist Wear

Jaw surfaces reach 53 HRC and the scroll plate 45 HRC after quench hardening, so clamping force stays consistent during long cuts. The short column connection keeps run-out low when the chuck spins at working speeds. Cast-iron body mass dampens vibration better than lighter alloys during extended sessions.

80 mm Outer Diameter Decides Fit

The 80 mm body diameter and 65 mm overall width determine whether the chuck clears your lathe spindle and tool post. Buyers with smaller spindle bores or tight cross-slide clearance should verify dimensions before ordering.

Highlights

  • HT300 cast iron with 53 HRC jaws resists wear
  • 45 HRC scroll plate maintains accuracy over time
  • 1-3.15 in clamping range suits diverse workpieces
  • Reversible jaws enable internal and external gripping
  • T-key included for quick installation

Specifications

TypeOther Appliances
Width6.1

Questions about this item

How much heat does the HT300 cast iron chuck generate during continuous all-day turning?

The HT300 cast iron body dissipates heat naturally; no active cooling is required and the material resists thermal distortion during extended use.

What spindle thread or mounting plate must I already have to bolt on the 80 mm outer-diameter chuck?

The chuck uses a short-column connection with a 22 mm inner bore; you need a matching back-plate or direct-thread adapter for your lathe spindle.

Will the reversible jaws still grip workpieces if I keep my older 30 mm to 80 mm stock?

Yes — the external jaw range spans 30-80 mm and the internal range covers 5-80 mm, so your existing stock sizes fall within both clamping ranges.

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