Precise 3 Piece 12″ Chuck Size Soft Steel Jaws Set – 3900-4648

• 1/16 x 90 Serrations.
• Set includes 3 pieces.
• Supplies maximum concentricity on finish turning operations.
• Can be bored or turned to fit workpiece.
• For use on: SMW, Autoblok, Rohm, Pratt Burnerd and other Chucks
• Jaws can be hardened.
• Made of SAE1045 steel.
• Chuck Size 12
• Groove width (D) is 0.827.
• Screw size (E) is 16mm.
• Hole space (F) is 1.102.
• Hole to front (H) is 2.520.
• Width (C) is 1.89.
• Length (A) is 5.08.
• Height (B) is 1.89.

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