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2.5″ 4-Jaw Self-Centering Chuck Body – Various Thread

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This chuck will automatically center square or round stock. (The stock must be accurately shaped for all four jaws to grip.) It will also grip thin-wall tubing in four places rather than three, which spreads out the load and allows more grip without crushing the tubing.

Centering accuracy on self-centering chucks is to within a few thousandths of an inch. If perfect centering accuracy is required using an independent chuck is recommended.

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The improper use of machine tools and their accessories can result in serious injury. Before using this tool, thoroughly read the instructions and make sure you understand its proper and safe use.

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Always wear safety glasses when operating machine tools.


Download PDF 1075 Instructions

Instructions PDF Download

Chuck Diameter 2.5″
Jaw Capacity With jaws in normal position: 3/32″ (2mm) – 1-3/16″ (30mm)

With jaws in reverse position: 3/32″ (2mm) – 2-1/4″ (56mm)

Through Hole Diameter .687″ (17mm)
Thread Size 3/4-16 (other thread sizes available)
Chuck Body Material 12L14 Steel
Chuck Jaws Material 12L14 Case Hardened Steel

Because chuck jaws are factory ground to precisely match each chuck body all replacement orders must be made by phone.