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Eight-inch cast-iron three-jaw lathe chuck with threaded backing plate and T-wrench

VEVOR

VEVOR 3-Jaw Lathe Chuck 8 in 200 mm 2 1/4-8 Threaded Backing Plate Specialty Appliance

SKU CH-KTAG-H0MAW

Self-centering 8-inch lathe chuck clamps 0.16 to 7.87-inch workpieces with HT300 cast iron jaws hardened to 53 HRC

  • TypeOther Appliances
  • Width11.61
  • HT300 cast iron with 53 HRC jaws resists wear and rust
  • Self-centering design removes need for repeated calibration
  • 200 mm outer diameter accepts 4-200 mm workpieces
  • 2 1/4-8 threaded backing plate enables faster machine connection
  • Compact 200 x 125 mm build balances function and reliability

8-inch 3-jaw lathe chuck

This self-centering chuck is built from HT300 cast iron with quench-hardened jaws rated at 53 HRC and a scroll plate at 45 HRC. It suits woodturners and metalworkers who need a single chuck to grip stock from 0.16 in up to 7.87 in without repeated recalibration.

Threaded backing-plate fit

The chuck ships with a 2 1/4 in-8 threaded backing plate already mounted. Verify that your lathe spindle carries the matching 2 1/4 in-8 thread and that the 2.56 in through-hole clears your intended bar stock before ordering.

Sustained clamping stability

Hardened HT300 construction resists wear and rust during long turning sessions. The self-centering mechanism maintains concentric grip on workpieces up to 7.87 in diameter without the drift that can appear in lighter chucks after extended heavy cuts.

Highlights

  • HT300 cast iron with 53 HRC jaws resists wear and rust
  • Self-centering design removes need for repeated calibration
  • 200 mm outer diameter accepts 4-200 mm workpieces
  • 2 1/4-8 threaded backing plate enables faster machine connection
  • Compact 200 x 125 mm build balances function and reliability

Specifications

TypeOther Appliances
Width11.61

Questions about this item

What comes in the package and do I need to buy anything else to start using the chuck?

The package contains the 8-inch (200 mm) 3-jaw lathe chuck with the 2 1/4 in-8 threaded backing plate already mounted and a T-wrench for jaw operation; no additional parts are required to begin work.

How do I decide between the internal and external clamping ranges for my workpiece size?

Use the internal jaws for diameters from 0.16 in to 7.87 in (4 mm to 200 mm) and the external jaws for 2.56 in to 7.87 in (65 mm to 200 mm); choose the range that covers your part’s diameter.

What does the 8-inch (200 mm) outer diameter mean for the size of parts I can actually turn?

The chuck can hold workpieces up to 7.87 in (200 mm) in diameter, while the 2.56 in (65 mm) through-hole lets bar stock pass through for machining longer pieces.

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