Precise 6″ Chuck Size Soft Steel Jaws – 3900-4756

• American Standard Tongue & Groove
• Set includes 3 pieces
• Supplies maximum concentricity on finish turning operations.
• Can be bored or turned to fit workpiece.
• Jaws can be hardened.
• Chuck Size 6″.
• Groove Width D is 0.313
• Tongue Width G is 1/2
• Screw Size E is 5/16
• Hole Space F is 1.500
• Tongue to Front H is 0.866
• Tongue Position C is Offset
• Width Inch A is 1-1/4
• Length Inch B is 2-7/8
• Height Inch is 1-1/4
• For use on Buck, Bison, Cushman, Huron, PBA, Yuasa and Rohm Chucks.

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