Precise 6" Dia. 3 Jaw Plain Back Zero-Set Self Centering Lathe Chuck - 3900-4576

Precise 6" Dia. 3 Jaw Plain Back Zero-Set Self Centering Lathe Chuck - 3900-4576

• Run true "0" set.
• Made of high grade tool steel.
• Hardened and ground to the highest T.I.R. with 0.0005" repeatability on duplicate parts.
• 2 piece top & master jaws are American Standard tongue & groove.
• 2 piece top jaws can be reversed for clamping and jamming.
• Provides increased gripping force with less jaw distortion.
• Opposing adjusting screws for "dead true" accuracy.
• Fine adjustment - Plain Back
• D1: 3.125”
• D2: 5.343”
• D3: 1.535”
• H: 3.88”
• H1: 2.32”
• h: 0.689”
• Z-D: 1/4-20
• Max. RPM: 3,400
• Weight: 19 lbs.

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