Precise Left Hand H.S.S. Adjustable Round Split Die, 1-1/8″-12 Thread Size, 12 T.P.I., 2-1/2″ O.D.

• H.S.S. – High Speed Steel
• Hardness: 58 to 60 RC
• Cutting Direction: Left Hand
• Thread Type: National Coarse
• For cutting standard external left hand screw threads.
• For hand or machine threading operations.
• For use in a variety of ferrous and non-ferrous materials.
• For threading rods, bolts, studs or similar applications where external threads are required.
• Screw can be removed to permit adjustment through the adjusting screw in the machine holder.
• Constructed as slotted round cutters with an adjusting screw that forces the sides of the die apart, enabling the die to cut all standard classes of thread fit.
• Screw can be adjusted to conform to the variety of H limits.
• The opening on dies are chamfered on both faces.
• For an easier start, use the longer taper chamfer.
• Use the shorter taper chamfer to cut threads closer to a shoulder.
• Workpiece Material Range: Steel, Non-Ferrous, Cast Iron, Plastics

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