4-Inch 3-Jaw Lathe Chuck | Steelex Fine Tools M1057 - ToolPlanet Skip to content
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Steelex Fine Tools 3-Jaw Lathe Chuck 4 Inch M1057 - ToolPlanet
Steelex Fine Tools 4-Inch 3-Jaw Lathe Chuck
T-handle chuck key and three mounting screws included with the Steelex lathe chuck.
Close-up of the included set of hardened steel stepped jaws for the Steelex 3-jaw self-centering chuck
Steelex Fine Tools 3-Jaw Lathe Chuck 4 Inch M1057 - ToolPlanet
Steelex Fine Tools 4-Inch 3-Jaw Lathe Chuck
T-handle chuck key and three mounting screws included with the Steelex lathe chuck.
Close-up of the included set of hardened steel stepped jaws for the Steelex 3-jaw self-centering chuck

Steelex Fine Tools 4-Inch 3-Jaw Lathe Chuck (M1057)

SKU WS-M1057
$89.66 - $89.66
$89.66
$89.66 - $89.66
$89.66

STORE CLEARANCE: Final Sale

Finding a reliable chuck that stays centered shouldn't break the shop budget. This 4-inch 3-jaw chuck is built from HT300 semi-steel to handle high-stress machining without losing accuracy. This is a plain back design, which means you will need a backing plate specific to your lathe's spindle to mount it. It is a solid choice for replacing a worn-out chuck or setting up a secondary fixture for consistent, self-centering performance.

Product Specifications

  • Diameter: 4 Inches
  • Body Material: HT300 semi-steel
  • Jaw Material: 20Cr quenching-hardened steel (53 HRC)
  • Scroll Material: 40Cr steel (45 HRC)
  • Mounting Type: Plain Back (requires separate backing plate)
  • Accuracy: Self-centering with bearing tolerance of 0.05 mm or less
  • Included Accessories: Internal jaws, external jaws, T-wrench, and mounting bolts

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